# IU discography

South Korean singer-songwriter IU has released five studio albums, eleven extended plays (EPs), 47 singles (including 19 as featured artist), five single albums, two remake albums and two compilation albums. In addition, the singer has collaborations and soundtracks for television series, films, and online games (including unreleased soundtracks).
The singer debuted with "Lost Child" in September 2008, which was released as the lead single for her debut EP Lost and Found (2008). The single and the EP failed to enter the charts until 2012 and were considered a failure by the singer herself. The singers first studio album Growing Up was released in April 2009 and supported through three singles—"Boo", "You Know" and "Marshmallow". Between late-2008 and January 2010, there were no official South Korean charts. With the foundation of the Gaon Music Chart in February 2010, the album debuted on no. 85 on its first issued week and later peaked at no. 6 in January 2012. In 2010, the singer released two singles; "Nagging" alongside Lim Seul-ong and "Good Day", which both peaked atop the Gaon Digital Chart and became two of the best-selling singles in South Korea, accumulating more than 4 million total sales.
Her second studio album Last Fantasy was released in November 2011 and was supported through the single "You & I". The album and the single debuted atop the South Korean charts with the album selling around 125,000 units and the single more than 6 million paid digital downloads, making it the second best-selling song in South Korea. IU's debut Japanese extended play I□U was released in December, debuting at no. 15 of the Oricon Albums Chart, selling about 12,000 copies. IU's fourth studio album Palette was released in April 2017 and supported through three singles; "Through the Night", "Can't Love You Anymore" and "Palette". The album debuted atop the Gaon Album Chart, selling a total of 97,000 copies. It became her first album to top the Billboard World Albums and peaked at no. 25 of the Top Heatseekers. Her ninth extended play Love Poem was released in November 2019. It debuted atop the Gaon Album Chart and became her best-selling album within two weeks, moving more than 160,000 physical copies. Love Poem was supported by two singles: "Love Poem" and "Blueming", both combined topping the charts for five weeks.
Over the course of her career, IU has sold over one million albums and more than 120 million paid digital downloads (with the sales of collaborative singles, soundtracks, album tracks, and other appearances included), making her the best selling female and solo artist of South Korea. IU has scored the most number one songs in Korea with a record-breaking 31 number-one songs on the Gaon Digital Chart and 18 on the Billboard K-pop Hot 100.

## Albums
### Studio albums

List of studio albums, with selected details, chart positions, and sales :
| Title | Album details | Peak chart positions | Peak chart positions | Peak chart positions | Peak chart positions | Sales | Certifications |
| Title | Album details | KOR | JPN | US World | US Heat | Sales | Certifications |
| Growing Up | Released: April 23, 2009 Label: LOEN Formats: CD, digital download, streaming | 6 | — | — | — | KOR: 26,171 | — |
| Last Fantasy | Released: November 29, 2011 Label: LOEN Formats: CD, digital download, streaming | 1 | — | — | — | KOR: 139,869 | — |
| Modern Times | Released: October 8, 2013 Label: LOEN Tree Formats: CD, digital download, streaming | 1 | 69 | 4 | — | KOR: 73,351 JPN: 3,323 | — |
| Modern Times – Epilogue | Released: December 20, 2013 Label: LOEN Tree Formats: CD, DVD, digital download, streaming | 4 | 69 | 4 | — | KOR: 10,000 | — |
| Palette | Released: April 21, 2017 Label: Fave Formats: CD, digital download, streaming | 1 | 96 | 1 | 25 | KOR: 145,911 JPN: 1,303 US: 1,000 | — |
| Lilac | Released: March 25, 2021 Label: EDAM Formats: CD, digital download, streaming | 1 | 23 | 9 | 18 | KOR: 431,571 JPN: 2,344 | KMCA: Platinum |
| "—" denotes releases that did not chart or were not released in that region. ||||||||

### Compilation albums

List of compilation albums, with selected details :
| Title | Album details |
| Smash Hits | Released: January 8, 2016 Label: Warner Music Taiwan Formats: CD, DVD |
| Smash Hits 2 – The Stories Between U & I | Released: September 18, 2018 Label: Warner Music Taiwan Formats: CD, DVD |

## Extended plays

List of extended plays, with selected chart positions and sales :
| Title | Details | Peak chart positions | Peak chart positions | Peak chart positions | Peak chart positions | Sales | Certifications |
| Title | Details | KOR | JPN | US Heat | US World | Sales | Certifications |
| Korean ||||||||
| Lost and Found | Released: September 23, 2008 Label: LOEN Formats: CD, digital download | 22 | — | — | — | KOR: 10,796 | — |
| IU...IM | Released: November 12, 2009 Label: LOEN Formats: CD, digital download | 7 | — | — | — | KOR: 18,385 | — |
| Real | Released: December 9, 2010 Label: LOEN Formats: CD, digital download | 2 | — | — | — | KOR: 92,743 | — |
| A Flower Bookmark | Released: May 16, 2014 Label: LOEN Tree Formats: CD, digital download, LP | 2 | 144 | — | 14 | KOR: 91,935 JPN: 896 | — |
| Chat-Shire | Released: October 23, 2015 Label: LOEN Tree Formats: CD, digital download | 2 | — | 19 | 4 | KOR: 96,587 JPN: 944 | — |
| A Flower Bookmark 2 | Released: September 22, 2017 Label: Fave Formats: CD, digital download | 3 | — | — | 5 | KOR: 79,532 JPN: 479 | — |
| Love Poem | Released: November 18, 2019 Label: Kakao M Formats: CD, digital download | 1 | — | 9 | 10 | KOR: 276,561 | KMCA: Platinum |
| Pieces | Released: December 29, 2021 Label: EDAM Formats: Digital download | — | — | — | — | — | — |
| The Winning | Released: February 20, 2024 Label: EDAM Formats: CD, digital download | 3 | 28 | — | — | KOR: 377,796 JPN: 2,446 | KMCA: Platinum |
| Japanese ||||||||
| I□U | Released: December 14, 2011 Label: EMI Music Japan Formats: CD, DVD | — | 15 | — | — | JPN: 12,000 | — |
| Can You Hear Me? | Released: March 15, 2013 Label: EMI Music Japan Format: CD, DVD | — | 23 | — | — | JPN: 8,500 | — |

## Single albums

List of single albums, with selected details and chart positions :
| Title | Album details | Peak | Peak | Sales |
| Title | Album details | KOR | JPN | Sales |
| Korean |||||
| Real+ | Released: February 18, 2011 Label: LOEN Formats: CD, digital download | 2 | — | KOR: 28,262 |
| Spring of a Twenty Year Old | Released: May 11, 2012 Label: LOEN Formats: CD, digital download | 3 | — | KOR: 50,249 |
| Japanese |||||
| Good Day | Released: March 21, 2012 Label: EMI Music Japan Formats: CD, DVD | — | 6 | JPN: 30,634 |
| You & I | Released: July 18, 2012 Label: EMI Music Japan Formats: CD, DVD | — | 5 | JPN: 18,068 |
| Monday Afternoon | Released: September 11, 2013 Label: EMI Records Japan Formats: CD, DVD | — | 15 | JPN: 7,044 |

## Singles
### As lead artist
#### 2000s

List of 2000s singles, with selected chart positions, year, and album :
| Title | Year | Peak chart positions | Sales | Album |
| Title | Year | KOR | Sales | Album |
| "Lost Child" (미아) | 2008 | — | KOR: 50,000 | Lost and Found |
| "Boo" | 2009 | — | — | Growing Up |
| "You Know" (있잖아; Rock version) | 2009 | — | — | Growing Up |
| "Marshmallow" (마쉬멜로우) (featuring Zico) | 2009 | 39 | — | IU...IM |

#### 2010s

List of 2010s singles, with selected chart positions, year, and album :
| Title | Year | Peak chart positions | Peak chart positions | Peak chart positions | Peak chart positions | Peak chart positions | Peak chart positions | Peak chart positions | Sales | Certifications | Album |
| Title | Year | KOR | KOR Billb. | JPN | JPN Hot | NZ Hot | SGP | US World | Sales | Certifications | Album |
| "Nagging" (잔소리) (with Lim Seul-ong) | 2010 | 1 | — | — | — | — | — | — | KOR: 3,043,000 KOR: 490,000 (rt.) | — | Non-album single |
| "Good Day" (좋은 날) | 2010 | 1 | 87 | 6 | 5 | — | — | — | KOR: 4,451,000 JPN: 30,634 | — | Real |
| "The Story Only I Didn't Know" (나만 몰랐던 이야기) | 2011 | 1 | — | — | — | — | — | — | KOR: 2,933,000 | — | Real+ |
| "Ice Flower" (얼음꽃) (featuring Yuna Kim) | 2011 | 8 | — | — | — | — | — | — | KOR: 1,733,000 | — | Non-album single |
| "You & I" (너랑 나) | 2011 | 1 | 1 | 5 | 11 | — | — | 3 | KOR: 7,000,000 JPN: 18,000 | — | Last Fantasy |
| "Peach" (복숭아) | 2012 | 2 | 3 | — | — | — | — | 24 | KOR: 1,384,000 | — | Spring of a Twenty Year Old |
| "Every End of the Day" (하루 끝) | 2012 | 1 | 1 | — | — | — | — | — | KOR: 2,528,000 | — | Spring of a Twenty Year Old |
| "Beautiful Dancer" | 2013 | — | — | — | 66 | — | — | — | — | — | Can You Hear Me? |
| "Monday Afternoon" | 2013 | — | — | 15 | 27 | — | — | — | JPN: 7,000 | — | Non-album single |
| "The Red Shoes" (분홍신) | 2013 | 1 | 1 | — | — | — | — | 19 | KOR: 1,359,000 | — | Modern Times |
| "Friday" (금요일에 만나요) (featuring Jang Yi-jeong) | 2013 | 1 | 1 | — | — | — | — | — | KOR: 5,000,000 | — | Modern Times – Epilogue |
| "My Old Story" (나의 옛날 이야기) | 2014 | 2 | 1 | — | — | — | — | — | KOR: 2,500,000 | — | A Flower Bookmark |
| "Twenty-Three" (스물셋) | 2015 | 1 | — | — | — | — | — | 4 | KOR: 2,500,000 | — | Chat-Shire |
| "Through the Night" (밤편지) | 2017 | 1 | 18 | — | — | — | — | 16 | KOR: 7,000,000 | — | Palette |
| "Can't Love You Anymore" (사랑이 잘) (with Oh Hyuk) | 2017 | 1 | 88 | — | — | — | — | — | KOR: 2,500,000 | — | Palette |
| "Palette" (팔레트) (featuring G-Dragon) | 2017 | 1 | 50 | — | — | — | — | 4 | KOR: 2,500,000 US: 2,000 | — | Palette |
| "Autumn Morning" (가을 아침) | 2017 | 1 | 53 | — | — | — | — | — | KOR: 2,500,000 | — | A Flower Bookmark 2 |
| "Sleepless Rainy Night" (잠 못 드는 밤 비는 내리고) | 2017 | 4 | — | — | — | — | — | — | KOR: 734,000 | — | A Flower Bookmark 2 |
| "Bbibbi" (삐삐) | 2018 | 1 | 1 | — | — | 26 | 26 | 5 | KOR: 2,500,000 | KMCA: Platinum (str.) KMCA: Platinum (dig.) | Non-album single |
| "Love Poem" | 2019 | 1 | 1 | — | — | — | — | 9 | — | KMCA: 2× Platinum (str.) | Love Poem |
| "Blueming" | 2019 | 1 | 1 | — | — | — | 14 | 10 | KOR: 2,500,000 | KMCA: 3× Platinum (str.) KMCA: Platinum (dig.) RIAJ: Gold (str.) | Love Poem |
| "—" denotes releases that did not chart or were not released in that region. ||||||||||||

#### 2020s

List of 2020s singles, with selected chart positions, year, and album :
| Title | Year | Peak chart positions | Peak chart positions | Peak chart positions | Peak chart positions | Peak chart positions | Peak chart positions | Peak chart positions | Peak chart positions | Sales | Certifications | Album |
| Title | Year | KOR | KOR Billb. | JPN Hot | MLY | NZ Hot | SGP | US World | WW | Sales | Certifications | Album |
| "Eight" (에잇) (featuring Suga) | 2020 | 1 | 1 | 25 | 1 | 14 | 1 | 1 | — | US: 7,000 | KMCA: 2× Platinum (str.) | Non-album single |
| "Celebrity" | 2021 | 1 | 1 | — | 3 | 13 | 2 | 3 | 78 | — | KMCA: 2× Platinum (str.) RIAJ: Gold (str.) | Lilac |
| "Lilac" (라일락) | 2021 | 1 | 1 | — | 13 | — | 6 | 11 | — | — | KMCA: Platinum (str.) | Lilac |
| "Coin" | 2021 | 4 | 4 | — | — | — | 26 | 18 | — | — | — | Lilac |
| "Strawberry Moon" | 2021 | 1 | 1 | — | — | — | 22 | 10 | — | — | KMCA: Platinum (str.) | Non-album single |
| "Winter Sleep" (겨울잠) | 2021 | 1 | 1 | — | — | — | — | — | — | — | — | Pieces |
| "Love Wins All" | 2024 | 1 | 1 | 80 | — | 29 | 11 | 3 | 25 | — | — | The Winning |
| "Holssi" (홀씨) | 2024 | 7 | 6 | — | — | — | — | — | — | — | — | The Winning |
| "Shopper" | 2024 | 6 | 9 | — | — | — | — | — | — | — | — | The Winning |
| "—" denotes releases that did not chart or were not released in that region. |||||||||||||

### As featured artist

| Title | Year | Peak chart positions | Peak chart positions | Peak chart positions | Sales | Certifications | Album |
| Title | Year | KOR Circle | KOR Hot | US World | Sales | Certifications | Album |
| "Suga Love" (Bizniz featuring IU) | 2009 | — | — | — | — | — | Suga Love |
| "Monday thru Sunday" (월화수목 금토일) (Suho featuring IU) | 2009 | — | — | — | — | — | DayZ |
| "It's First Love" (첫사랑이죠) (Na Yoon-Kwon featuring IU) | 2010 | 3 | — | — | KOR: 1,290,307 | — | Non-album single |
| "I Believe in Love" (사랑을 믿어요) (Yoo Seung-ho featuring IU) | 2010 | 11 | — | — | KOR: 1,010,437 | — | Road for Hope |
| "It's You" (그대네요) (Sung Si-kyung featuring IU) | 2010 | 1 | — | — | KOR: 1,975,728 | — | The First |
| "I Know" (Seungri featuring IU) | 2011 | 42 | — | — | — | — | V.V.I.P |
| "Like You" (Wanted featuring IU) | 2012 | 9 | 14 | — | KOR: 945,260 | — | Vintage |
| "Sea of Moonlight" (달빛바다) (Fiestar featuring IU) | 2012 | 12 | 10 | — | KOR: 1,004,426 | — | Loen Tree Summer Story |
| "Not Spring, Love, or Cherry Blossoms" (봄 사랑 벚꽃 말고) (High4 featuring IU) | 2014 | 1 | 1 | 21 | KOR: 2,763,793 | — | Hi High |
| "Summer Love" (애타는 마음) (Ulala Session featuring IU) | 2014 | 4 | — | — | KOR: 1,085,944 | — | Non-album single |
| "Sogyeokdong" (Seo Taiji featuring IU) | 2014 | 4 | — | 21 | KOR: 706,157 | — | Quiet Night |
| "When Would It Be" (언제쯤이면) (Yoon Hyun-sang featuring IU) | 2014 | 9 | — | — | KOR: 815,000 | — | Pianoforte |
| "Leon" (레옹) (Park Myung-soo with IU as Eu God-G isn't EU) | 2015 | 1 | — | 18 | KOR: 1,661,825 | — | Infinite Challenge: Yeongdong Expressway Music Festival |
| "Choice" (결정) (Hyungdon and Daejun featuring IU) | 2016 | 22 | — | — | KOR: 130,098 | — | Non-album single |
| "Secret Everyone Knows" (누구나 아는 비밀) (Sister's Barbershop featuring IU) | 2017 | — | — | — | — | — | People Who Stay Alone |
| "Love Story" (연애소설) (Epik High featuring IU) | 2017 | 1 | 1 | — | KOR: 2,500,000 | — | We've Done Something Wonderful |
| "Cat"(고양이) (Sunwoo Jung-a featuring IU) | 2017 | 64 | — | — | — | — | Non-album single |
| "SoulMate" (Zico featuring IU) | 2018 | 1 | 1 | — | — | — | SoulMate |
| "Fairytale" (동화) (Kim Dong-ryul featuring IU) | 2018 | 4 | — | — | — | — | Non-album singles |
| "First Winter" (Sung Si-kyung featuring IU) | 2019 | 3 | 11 | — | — | — | Non-album singles |
| "Small Room" (Sweet Sorrow featuring IU) | 2020 | — | — | — | — | — | Non-album singles |
| "Nakka" (낙하) (AKMU featuring IU) | 2021 | 1 | 1 | — | — | KMCA: Platinum (str.) | Next Episode |
| "Mother Nature (H₂O)" (Kang Seung-won featuring IU) | 2022 | 130 | 81 | — | — | — | Moving House Part.3 |
| "Ganadara" (Jay Park featuring IU) | 2022 | 1 | 1 | 10 | — | — | Non-album single |
| "People Pt. 2" (Agust D featuring IU) | 2023 | 14 | 25 | 1 | — | — | D-Day |
| "—" denotes releases that did not chart or were not released in that region. ||||||||

### Soundtrack appearances

| Title | Year | Peak | Peak | Peak | Sales | Certifications | Album |
| Title | Year | KOR Circle | KOR Hot | US World | Sales | Certifications | Album |
| "You Are Always Like That" (그러는 그대는) | 2009 | — | — | — | — | — | Strike Love O.S.T |
| "To the Sea" (아라로) | 2009 | — | — | — | — | — | Queen Seondeok O.S.T |
| "Wind Flower" (바람꽃) | 2009 | — | — | — | — | — | Queen Seondeok O.S.T |
| "Danny Boy" | 2009 | — | — | — | — | — | Paradise O.S.T |
| "Fifth Finger" (다섯째 손가락) | 2010 | 11 | — | — | — | — | 19-Nineteen O.S.T |
| "Because I'm a Woman" (여자라서) | 2010 | 6 | — | — | KOR: 1,478,000 | — | Road No. 1 O.S.T |
| "Someday" | 2011 | 1 | — | — | KOR: 2,209,924 | — | Dream High O.S.T |
| "Hold My Hand" (내 손을 잡아) | 2011 | 2 | 9 | — | KOR: 2,500,000 | — | The Greatest Love O.S.T |
| "Heart" (마음) | 2015 | 1 | — | — | KOR: 2,500,000 | — | The Producers O.S.T |
| "Give You My Heart" | 2020 | 1 | 3 | 11 | — | KMCA: Platinum (str.) | Crash Landing on You O.S.T |
| "Into the I-LAND" | 2020 | 3 | 3 | 24 | — | — | I-LAND Part.1 Signal Song |
| "Someday" (Dream High musical cast featuring IU) | 2024 | — | — | — | — | — | Show Musical Dream High OST |
| "—" denotes releases that did not chart or were not released in that region. ||||||||

### Promotional singles

| Title | Year | Peak | Album |
| Title | Year | JPN Hot | Album |
| "Friend" (Anzen Chitai cover) | 2012 | — | Non-album singles |
| "Aishiteru" (Kourin cover) | 2012 | — | Non-album singles |
| "The Age of the Cathedrals" | 2013 | — | Can You Hear Me? |
| "New World" | 2013 | 76 | Can You Hear Me? |

## Other charted songs

| Title | Year | Peak chart positions | Peak chart positions | Sales | Album |
| Title | Year | KOR Circle | KOR Hot | Sales | Album |
| "Rain Drop" (Wheesung cover) | 2010 | 74 | — | KOR: 206,934 | I□U |
| "Merry Christmas Ahead" (featuring Thunder) | 2010 | 7 | 17 | KOR: 1,040,741 | Real |
| "This Is Not What I Thought" (이게 아닌데) | 2010 | 9 | — | KOR: 652,700 | Real |
| "The Night of the First Breakup" (첫 이별 그날 밤) | 2010 | 20 | — | — | Real |
| "The Thing I Do Slowly" (느리게 하는 일) | 2010 | 21 | — | — | Real |
| "Alone in the Room" (혼자 있는 방) | 2010 | 27 | — | — | Real |
| "Good Day" (Instrumental) | 2010 | 193 | — | — | Real |
| "Cruel Fairytale" (잔혹동화) | 2011 | 8 | — | KOR: 1,051,000 | Real+ |
| "Secret" (비밀) | 2011 | 2 | 5 | KOR: 2,046,000 | Last Fantasy |
| "Sleeping Prince of the Woods" (잠자는 숲 속의 왕자) (featuring Yoon Sang; Halo cover) | 2011 | 3 | 9 | KOR: 1,245,000 | Last Fantasy |
| "Uncle" (삼촌) (featuring Lee Juck) | 2011 | 4 | 8 | KOR: 1,755,709 | Last Fantasy |
| "A Child Searching for Stars" (별을 찾는 아이) (featuring Kim Kwang-jin) | 2011 | 6 | 12 | KOR: 1,078,444 | Last Fantasy |
| "Wallpaper Patterns" (벽지무늬) | 2011 | 7 | 15 | KOR: 953,344 | Last Fantasy |
| "Wisdom Tooth" (사랑니) | 2011 | 8 | 19 | KOR: 952,827 | Last Fantasy |
| "Teacher" (featuring Ra.D) | 2011 | 9 | 25 | KOR: 844,936 | Last Fantasy |
| "Everything's Alright" (featuring Kim Hyeon-cheol) | 2011 | 11 | 24 | KOR: 847,469 | Last Fantasy |
| "Last Fantasy" | 2011 | 12 | 27 | KOR: 805,567 | Last Fantasy |
| "4AM" | 2011 | 13 | 32 | KOR: 776,856 | Last Fantasy |
| "A Stray Puppy" (길 잃은 강아지) | 2011 | 17 | 40 | KOR: 665,559 | Last Fantasy |
| "L'amant" (라망) | 2011 | 19 | 49 | KOR: 576,293 | Last Fantasy |
| "I Really Don't Like Her" (그 애 참 싫다) | 2012 | 15 | 12 | KOR: 699,322 | Spring of a Twenty Year Old |
| "Everybody Has Secrets" (누구나 비밀은 있다) (featuring Gain of Brown Eyed Girls) | 2013 | 2 | 3 | KOR: 573,315 | Modern Times |
| "Love of B" (을의 연애) | 2013 | 3 | 7 | KOR: 428,808 | Modern Times |
| "Between the Lips (50cm)" (입술 사이) | 2013 | 4 | 5 | KOR: 436,249 | Modern Times |
| "A Gloomy Clock" (우울시계) (featuring Jonghyun of Shinee) | 2013 | 6 | 11 | KOR: 405,520 | Modern Times |
| "Modern Times" | 2013 | 7 | 10 | KOR: 424,678 | Modern Times |
| "Bad Day" (싫은 날) | 2013 | 8 | 14 | KOR: 342,058 | Modern Times |
| "Obliviate" | 2013 | 11 | 23 | KOR: 277,739 | Modern Times |
| "Daydream" (한낮의 꿈) (featuring Yang Hee-eun) | 2013 | 12 | 15 | KOR: 267,560 | Modern Times |
| "Havana" | 2013 | 13 | 29 | KOR: 220,376 | Modern Times |
| "Walk with Me, Girl" (아이야, 나랑 걷자) (featuring Choi Baek-ho) | 2013 | 14 | 26 | KOR: 211,360 | Modern Times |
| "Wait" (기다려) | 2013 | 17 | 41 | KOR: 188,745 | Modern Times |
| "Voice Mail (Korean version)" | 2013 | 18 | 28 | KOR: 188,063 | Modern Times |
| "Pastel Crayon" (크레파스) (from Bel Ami) | 2013 | 39 | 27 | KOR: 98,476 | Modern Times – Epilogue |
| "The Meaning of You" (너의 의미) (featuring Kim Chang-wan; Sanulrim cover) | 2014 | 3 | 2 | KOR: 2,500,000 | A Flower Bookmark |
| "When Love Passes By" (사랑이 지나가면) (Lee Moon-se cover) | 2014 | 4 | 3 | KOR: 781,730 | A Flower Bookmark |
| "Pierrot Smiles at Us" (삐에로는 우릴 보고 웃지) (Kim Wan-sun cover) | 2014 | 8 | 10 | KOR: 499,054 | A Flower Bookmark |
| "Dreams in Summer Night" (여름밤의 꿈) (Kim Hyun-sik cover) | 2014 | 12 | 12 | KOR: 465,318 | A Flower Bookmark |
| "Flower" (꽃) (Kim Kwang-seok cover) | 2014 | 14 | 13 | KOR: 353,253 | A Flower Bookmark |
| "Boom Ladi Dadi" (꿍따리 샤바라) (featuring Clon; Clon cover) | 2014 | 16 | 14 | KOR: 303,359 | A Flower Bookmark |
| "Sing for Me" (노래 불러줘요) (g.o.d feat. IU) | 2014 | 9 | — | KOR: 339,899 | Chapter 8 |
| "The Shower" (푸르던) | 2015 | 2 | — | KOR: 1,014,210 | Chat-Shire |
| "Shoes" (새 신발) | 2015 | 5 | — | KOR: 578,505 | Chat-Shire |
| "Knees" (무릎) | 2015 | 5 | — | KOR: 730,323 | Chat-Shire |
| "Zezé" | 2015 | 8 | — | KOR: 796,704 | Chat-Shire |
| "Red Queen" (featuring Zion.T) | 2015 | 10 | — | KOR: 427,439 | Chat-Shire |
| "Glasses" (안경) | 2015 | 13 | — | KOR: 362,363 | Chat-Shire |
| "Ending Scene" (이런 엔딩) | 2017 | 3 | — | KOR: 2,500,000 | Palette |
| "Dlwlrma" (이 지금) | 2017 | 5 | — | KOR: 2,500,000 | Palette |
| "Jam Jam" (잼잼) | 2017 | 7 | — | KOR: 461,247 | Palette |
| "Dear Name" (이름에게) | 2017 | 9 | — | KOR: 2,500,000 | Palette |
| "Black Out" | 2017 | 14 | — | KOR: 283,532 | Palette |
| "Full-Stop" (마침표) | 2017 | 16 | — | KOR: 246,926 | Palette |
| "Love Alone" (그렇게 사랑은) | 2017 | 19 | — | KOR: 201,511 | Palette |
| "Secret Garden" (비밀의 화원) (Lee Tzsche cover) | 2017 | 10 | — | KOR: 466,059 | A Flower Bookmark 2 |
| "Every Day with You" (매일 그대와) (Deulgukhwa cover) | 2017 | 12 | — | KOR: 325,396 | A Flower Bookmark 2 |
| "Last Night Story" (어젯밤 이야기) (Sobangcha cover) | 2017 | 15 | — | KOR: 301,981 | A Flower Bookmark 2 |
| "By the Stream" (개여울) (Jeong Mi-jo cover) | 2017 | 19 | — | KOR: 178,956 | A Flower Bookmark 2 |
| "Road" (g.o.d song by IU, Henry Lau, Jo Hyun-ah, and Yang Da-il) | 2019 | 14 | — | — | Then & Now |
| "Above the Time" (시간의 바깥) | 2019 | 5 | 6 | — | Love Poem |
| "Unlucky" | 2019 | 8 | 9 | — | Love Poem |
| "The Visitor" (그 사람) | 2019 | 10 | 15 | — | Love Poem |
| "Lullaby" (자장가) | 2019 | 14 | 17 | — | Love Poem |
| "Flu" | 2021 | 7 | 6 | — | Lilac |
| "Hi Spring Bye" (봄 안녕 봄) | 2021 | 8 | 5 | — | Lilac |
| "Troll" (돌림노래) (featuring Dean) | 2021 | 10 | 9 | — | Lilac |
| "Empty Cup" (빈 컵) | 2021 | 19 | 13 | — | Lilac |
| "My Sea" (아이와 나의 바다) | 2021 | 11 | 9 | — | Lilac |
| "Ah Puh" (어푸) | 2021 | 13 | 11 | — | Lilac |
| "Epilogue" (에필로그) | 2021 | 17 | 12 | — | Lilac |
| "Drama" (드라마) | 2021 | 8 | 7 | — | Pieces |
| "Next Stop" (정거장) | 2021 | 18 | 23 | — | Pieces |
| "You" (너) | 2021 | 26 | 32 | — | Pieces |
| "Love Letter" (러브레터) | 2021 | 23 | 31 | — | Pieces |
| "Shh.." (featuring Hyein, Wonsun Joe and Patti Kim) | 2024 | 20 | — | — | The Winning |
| "I Stan U" (관객이 될게) | 2024 | 23 | — | — | The Winning |
| "—" denotes releases that did not chart or were not released in that region. ||||||

## Other appearances

| Song | Year | Other artists | Album |
| "All You Need Is Love" (The Beatles cover) | 2009 | Zitten and Ran | MBC Music Travel LaLaLa Live Vol. 5 |
| "I Don't Know About Love Yet" (Lee Ji-yeon cover) | 2009 | | MBC Music Travel LaLaLa Live Vol. 5 |
| "I Hope" | 2009 | Mighty Mouth | Love Class |
| "247" | 2009 | The Three Views | The Three Views: Part 3 |
| "You Are Stunning" | 2009 | Run | Face-Off |
| "My Dream Is to Be a Patissiere" | 2010 | | Yumeiro Patissiere |
| "Why" | 2010 | Supreme Team, Young-jun | Ames Room |
| "Gift" | 2010 | various artists | Road for Hope |
| "Let's Go" | 2010 | various artists | Non-album song |
| "Alicia" | 2011 | | Non-album song |
| "Dreaming" | 2011 | | Dream High |
| "Suga Luv" (Valentine Mix) | 2011 | Bizniz | The Brand New |
| "I Hoppin U" | 2011 | | Non-album song |
| "Let's Catch the Bus" | 2011 | | Non-album song |
| "Melody of the Wind" | 2011 | | Leafie, A Hen into the Wild |
| "Memories of the Sea" | 2011 | | Non-album song |
| "Stranded" (Korean version) | 2012 | | A Turtle's Tale 2: Sammy's Escape from Paradise |
| "Atreia" | 2012 | | Non-album song |
| "Beautiful Song" | 2013 | Jo Jung-suk | You Are the Best! |
| "You Are A Miracle" | 2013 | various artists | SBS Gayo Daejun 'Friendship Project' |
| "Take Care of My Dad" | 2015 | | Non-album song |
| "My Dear Friend" | 2016 | | Moon Lovers: Scarlet Heart Ryeo |
| "She's Different from Me" | 2017 | Lee Hyo-ri | Hyori's Homestay |
| "With the Heart to Forget You" | 2018 | | Non-album song |
| "Happy Ending" | 2019 | | Hotel del Luna |
| "One Step" | 2023 | Miral School | Non-album song |

## Footnotes

* 1 2 3 4 5 In April 2018, the Korea Music Content Association introduced music recording certifications for albums and singles; pre-2018 releases therefore are ineligible for certifications.
* ↑ Prior to the establishment of the Gaon Music Chart in 2010, South Korea's music charts were supplied by the Music Industry Association of Korea (MIAK), which stopped compiling data in 2008.
* 1 2 3 4 5 6 Korean sales are paid digital downloads, previously weekly, monthly and annually provided by the Gaon Music Chart. In 2018, Gaon replaced detailed downloads and streaming numbers with the Gaon Digital Index. Sales are now monthly reported on the 'Observation Board' if a song reaches a specific milestone. Japanese sales are physical single sales, provided by Oricon.
* 1 2 3 4 5 The Gaon Music Chart began releasing data in 2010 after the Music Industry Association of Korea stopped compiling data in 2008. Online sources for charts prior to January 2010 are currently unavailable.
* 1 2 3 4 The Billboard K-pop Hot 100 chart launched in 2011 and was discontinued in 2014. On the issue dated May 29 – June 4, 2017, the chart was re-established.
* ↑ "Lost Child" did not enter the Gaon Digital Chart, but peaked at number 153 on the Gaon Download Chart.
* ↑ alternatively titled "Well... (Rock Ver.)" and "Hey (Rock Ver.)"
* ↑ "Good Day" was released in Korea on December 9, 2010. The Japanese version was released in Japan on March 21, 2012.
* ↑ "You & I" was released in South Korea as a single on November 28, 2011. In Japan, the single was released on July 18, 2012.
* ↑ Jo Duk-bae cover
* ↑ Yang Hee-eun cover
* ↑ Kim Gun-mo cover
* ↑ "Lilac" did not enter the Billboard Global 200, but peaked at number 151 on the Billboard Global Excl. U.S. chart.
* ↑ "Strawberry Moon" did not enter the Billboard Global 200, but peaked at no. 121 on the Billboard Global Excl. U.S. chart.
* ↑ "Holssi" did not enter the Billboard Global 200, but peaked at number 138 on the Billboard Global Excl. U.S. chart.
* ↑ "Shopper" did not enter the RIAS International Top Charts, but peaked at number 30 on the Regional Top Charts.
* ↑ "Shopper" did not enter the Billboard Global 200, but peaked at number 179 on the Billboard Global Excl. U.S. chart.
* ↑ The song was later included as a CD-only special track in a special edition of the soundtrack album for the series. It was also included as a CD-only bonus track in IU's EP Chat-Shire.
* ↑ South Korean sales figures for "Lost Child" as of March 2012.
* ↑ The song was recorded two years before Zico debuted as the leader of Block B.
* ↑ South Korean sales figures for "Nagging" as of February 2012.
* ↑ South Korean sales figures for "Good Day" as of 2014.
* ↑ South Korean sales figures for "Only I Didn't Know" as of December 2013.
* 1 2 Sales figures for "Ice Flower", "Hold My Hand", "Someday" and "Cruel Fairytale" as of 2011.
* ↑ South Korean sales figures for 'YOU&I' as of July 2022.
* 1 2 3 4 Sales figures for "Peach", "Every End of the Day", "Like You" and "Sea of Moonlight" as of December 2012.
* ↑ Sales figures for "The Red Shoes" as of 2014.
* 1 2 3 Sales figures for "Twenty-Three", "Heart" and "Can't Love You Anymore" as of February 2019.
* ↑ Sales figures for "Through the Night" as of July 2022.
* ↑ Sales figures for "Palette" as of September 2018.
* ↑ Sales figures for "Sleepless Rainy Night" as of December 2017.
* ↑ Sales figures for "Bbibbi" as of September 2019.
* ↑ Sales figures for "Blueming" as of August 2022.
* 1 2 Sales figures for "It's First Love" and "I Believe in Love" as of December 2010.
* ↑ Sales figures for "It's You" as of December 2015.
* ↑ Sales figures for "Not Spring, Love, or Cherry Blossoms" as of April 2017.
* ↑ Sales figures for "Summer Love" as of December 2015.
* 1 2 Sales figures for "When Love Passes By" and "Sogyeokdong" as of December 2014.
* ↑ Sales figures for "When Would It Be" as of March 14, 2015.
* ↑ Sales figures for "Leon" as of September 2016.
* ↑ Sales figures for "Choice" as of September 2016.
* ↑ Sales figures for "Because I'm a Woman" as of December 2010.
* ↑ Sales figures for "Rain Drop" as of 2015.
* ↑ Sales figures for "Merry Christmas in Advance" since 2011 only.
* 1 2 Sales figures for "Secret" and "Uncle" as 2012.
* ↑ Sales figures for "Sleeping Prince of the Woods" as of January 2012.
* ↑ Sales figures for "A Child Searching for Stars" as of January 2012.
* 1 2 3 4 Sales figures for "Wallpaper Patterns", "Wisdom Tooth", "Teacher" and "Everything's Alright" as of January 2012.
* ↑ Sales figures for "Last Fantasy" as of January 2012.
* 1 2 3 Sales figures for "4AM", "A Stray Puppy" and "L'amant" as of January 2012.
* ↑ Sales figures for "I Really Don't Like Her" as of 2012.
* ↑ Sales figures for "Everybody Has Secrets" as of 2013.
* 1 2 3 4 5 Sales figures and references for "Love of B", "Between the Lips (50cm)", "A Gloomy Clock", "Modern Times" & "Bad Day".
* ↑ Sales figures for "Obliviate" and "Daydream".
* 1 2 3 4 Sales figures for "Havana", "Walk with Me, Girl", "Wait" and "Voice Mail" as of October 2013.
* ↑ Sales figures for "Pastel Crayon" as of January 2014.
* 1 2 Sales figures for "Pierrot Smiles at Us" and "Dreams in Summer Night" as of end of 2014.
* 1 2 3 Sales figures for "Flower", "Boom Ladi Dadi" and "Sing for Me" as of June 2014.
* ↑ Sales figures for "The Shower" as of September 2016.
* ↑ Sales figures for "Shoes" as of July 2016.
* ↑ Sales figures for "Knees" as of September 2016.
* ↑ Sales figures for "Zezé" as of July 2016.
* 1 2 Sales figures for "Red Queen" and "Glasses" as of 2015.
* 1 2 Sales figures for "Ending Scene" and "Dlwlrma" as of December 2017.
* ↑ Sales figures for "Jam Jam" as of July 2017.
* ↑ Sales figures for "Dear Name" as of December 2017.
* 1 2 Sales figures for "Black Out" and "Full-Stop" as of May 2017.
* ↑ Sales figures for "Love Alone" as of May 2017.
* ↑ Sales figures for "Secret Garden" as of September 2017.
* 1 2 Sales figures for "Every Day with You" and "Last Night Story" as of October 2017.
* ↑ Sales figures for "By the Stream" as of October 2017.
* ↑ This is an altered version of the singer's 2010 song "Merry Christmas in Advance" with different lyrics.
* ↑ "With the Heart to Forget You" by late Kim Kwang-seok was originally going to be included in A Flower Bookmark 2, but, due to the revelations surrounding the death of Kim's daughter, Fave Entertainment decided to remove the track.