# Crystal Kay discography

The discography of Japanese contemporary R&B singer Crystal Kay consists of 12 studio albums, three extended plays, five compilation albums, four video albums and numerous single releases. Crystal Kay debuted as a singer at 13 years of age in 1999 under Epic Records Japan. Her third album Almost Seventeen (2002) saw a great leap in popularity for Crystal Kay, reaching number two on Oricon's albums chart. In 2005, Crystal Kay sang the eponymous theme song for the Tsuyoshi Kusanagi drama Koi ni Ochitara: Boku no Seikō no Himitsu. "Koi ni Ochitara" became Crystal Kay's most successful single, being certified for a million ringtone downloads.
In 2011, Crystal Kay signed to Delicious Deli Records, after 11 years with Epic Records, and released the album Vivid (2012). In March 2013 Crystal Kay relocated to New York City to pursue an American debut through Copetin Inc, releasing the single "Busy Doing Nothing" a year later. In October 2014, Crystal Kay re-focused on Japan by switching her management to LDH.

## Studio albums

List of studio albums, with selected chart positions and certifications :
| Title | Album details | Peak positions | Peak positions | Peak positions | Sales | Certifications |
| Title | Album details | JPN | KOR Intl. | TWN East Asia | Sales | Certifications |
| C.L.L Crystal Lover Light | Released: March 23, 2000 (JPN) Label: Epic Formats: CD, digital download, streaming | 60 | — | — | JPN: 19,000 | |
| 637: Always and Forever | Released: August 22, 2001 (JPN) Label: Epic Formats: CD, digital download, streaming | 19 | — | — | JPN: 49,000 | RIAJ: Gold |
| Almost Seventeen | Released: October 23, 2002 (JPN) Label: Epic Formats: CD, digital download, streaming | 2 | — | — | JPN: 354,000 | RIAJ: Gold |
| 4 Real | Released: November 27, 2003 (JPN) Label: Epic Formats: CD, digital download, streaming | 6 | — | — | JPN: 246,000 | RIAJ: Platinum |
| Crystal Style | Released: March 2, 2005 (JPN) Label: Epic Formats: CD, CD/DVD, digital download, streaming | 2 | — | — | JPN: 297,000 | RIAJ: Platinum |
| Call Me Miss... | Released: February 22, 2006 (JPN) Label: Epic Formats: CD, CD/DVD, digital download, streaming | 2 | — | — | JPN: 251,000 | RIAJ: Platinum |
| All Yours | Released: June 20, 2007 (JPN) Label: Epic Formats: CD, CD/DVD, digital download, streaming | 1 | — | 5 | JPN: 137,000 | RIAJ: Gold |
| Color Change! | Released: August 6, 2008 (JPN) Label: Epic Formats: CD, CD/2DVD, digital download, streaming | 8 | — | — | JPN: 100,000 | RIAJ: Gold |
| Spin the Music | Released: December 8, 2010 (JPN) Label: Epic Formats: CD, digital download, streaming | 42 | 40 | — | JPN: 10,000 | |
| Vivid | Released: June 27, 2012 Label: Delicious Deli Formats: CD, CD/DVD, digital download, streaming | 35 | — | — | JPN: 5,000 | |
| Shine | Released: December 16, 2015 Label: Delicious Deli Formats: CD, CD/DVD, CD/Blu-ray, digital download, streaming | 10 | — | — | JPN: 17,000 | |
| For You | Released: June 13, 2018 Label: Virgin Formats: CD, CD/DVD, digital download, streaming | 30 | — | — | JPN: 4,000 | |
| "—" denotes items which were released before the creation of the G-Music or Gaon charts, or items that did not chart. |||||||

## Extended plays

List of extended plays, with selected chart positions :
| Title | Album details | Peak positions | Sales |
| Title | Album details | JPN | Sales |
| Shining | Released: November 28, 2007 (JPN) Label: Epic Formats: CD, digital download, streaming | 21 | JPN: 12,000 |
| Flash | Released: June 16, 2010 (JPN) Label: Epic Formats: CD, CD/DVD, digital download, streaming | 29 | JPN: 6,000 |
| Start Again EP | Released: February 24, 2023 Label: Virgin Formats: Digital download, streaming | — | |
| "—" denotes items that did not chart. ||||

## Compilation albums

List of compilation albums, with selected chart positions and certifications :
| Title | Album details | Peak positions | Sales | Certifications |
| Title | Album details | JPN | Sales | Certifications |
| Crystal Kay | Album compiling English language songs, released as Natural: World Premiere Album in Japan Released: November 7, 2003 (KOR) Label: Epic Formats: CD, digital download, streaming | 34 | JPN: 30,000 | |
| CK5 | Released: June 30, 2004 (JPN) Label: Epic Formats: CD, CD/DVD, digital download, streaming | 2 | JPN: 282,000 | RIAJ: Platinum |
| Best of Crystal Kay | Released: September 2, 2009 (JPN) Label: Epic Formats: 2CD, 3CD, digital download, streaming | 3 | JPN: 156,000 | RIAJ: Gold |
| The Best Remixes of CK | Released: December 16, 2009 (JPN) Label: Epic Formats: CD, digital download, streaming | 195 | JPN: 1,000 | |
| Love Song Best | Released: December 14, 2011 (JPN) Label: Epic Formats: CD, 2CD, digital download, streaming | 81 | JPN: 4,000 | |

## Cover albums

List of cover albums, with selected chart positions :
| Title | Album details | Peak positions |
| Title | Album details | JPN |
| I Sing | Released: April 21, 2021 Label: Virgin Formats: CD, digital download, streaming | 61 |

## Soundtrack albums

List of soundtrack albums, with selected chart positions :
| Title | Album details |
| A2Z (with Akihiro Manabe) | Released: March 1, 2023 Label: Virgin Formats: CD, digital download, streaming |

## Singles
### As a lead artist

List of singles, with selected chart positions :
| Title | Year | Peak chart positions | Peak chart positions | Peak chart positions | Sales (JPN) | Certifications | Album |
| Title | Year | JPN | JPN Hot | TWN East Asia | Sales (JPN) | Certifications | Album |
| "Eternal Memories" | 1999 | 47 | — | — | 20,000 | | C.L.L Crystal Lover Light |
| "Teenage Universe (Chewing Gum Baby)" | 1999 | 47 | — | — | 13,000 | | C.L.L Crystal Lover Light |
| "Komichi no Hana" (こみちの花, "Path Flower") | 1999 | 80 | — | — | 3,000 | | C.L.L Crystal Lover Light |
| "Shadows of Desire" | 2000 | — | — | — | | | C.L.L Crystal Lover Light |
| "Girl's Night" | 2001 | 100 | — | — | 2,000 | | 637: Always and Forever |
| "Ex-Boyfriend" (featuring Verbal) | 2001 | 44 | — | — | 21,000 | | 637: Always and Forever |
| "Think of U" | 2001 | 60 | — | — | 7,000 | | Almost Seventeen |
| "Hard to Say" | 2002 | 26 | — | — | 45,000 | | Almost Seventeen |
| "Girl U Love" | 2002 | 156 | — | — | 1,000 | | Almost Seventeen |
| "Boyfriend (Part II)" | 2003 | 3 | 40 | — | 33,000 | RIAJ (digital): Gold | 4 Real |
| "I Like It" (with M-Flo) | 2003 | 8 | — | — | 58,000 | | 4 Real |
| "Candy" | 2003 | 2 | — | — | 15,000 | | 4 Real |
| "Can't Be Stopped" | 2003 | 146 | — | — | 1,000 | | 4 Real |
| "Motherland" | 2004 | 9 | — | — | 43,000 | | CK5 |
| "Bye My Darling!" | 2004 | 40 | — | — | 7,000 | | Crystal Style |
| "Kiss" | 2005 | 10 | — | — | 65,000 | RIAJ (cellphone): Gold | Crystal Style |
| "Koi ni Ochitara" (恋におちたら, "If I Fall in Love") | 2005 | 2 | 51 | — | 295,000 | RIAJ (ringtone): Million RIAJ (digital): 2× Platinum RIAJ (physical): Platinum RIAJ (streaming): Gold | Call Me Miss... |
| "Two as One" (with Chemistry) | 2005 | 2 | — | — | 107,000 | RIAJ (cellphone): Gold RIAJ (physical): Gold | Call Me Miss... |
| "Kirakuni" ("Take It Easy") | 2006 | 27 | 1 | 5 | 14,000 | | Call Me Miss... |
| "Together" | 2006 | 27 | 12 | 5 | 14,000 | | Call Me Miss... |
| "Kitto Eien ni" (きっと永遠に, "Surely for Eternity") | 2007 | 12 | — | — | 20,000 | RIAJ (cellphone): Gold | All Yours |
| "Konna ni Chikaku de..." (こんなに近くで, "This Close...") | 2007 | 14 | — | — | 17,000 | RIAJ (cellphone): Gold | All Yours |
| "Anata no Soba de" (あなたのそばで, "Next to You") | 2007 | 30 | — | — | 7,000 | | All Yours |
| "Namida no Saki ni" (涙のさきに, "Beyond the Tears") | 2008 | 42 | 29 | — | 4,000 | | Color Change! |
| "One" | 2008 | 32 | 20 | — | 7,000 | | Color Change! |
| "Girlfriend" (featuring BoA) | 2009 | 31 | 57 | — | 4,000 | | Best of Crystal Kay |
| "After Love (First Boyfriend)" (featuring Kaname of Chemistry) | 2009 | 31 | 20 | — | 4,000 | | Spin the Music |
| "Journey (Kimi to Futari de)" (君と二人で, "Together with You") | 2010 | 193 | 14 | — | 400 | | Spin the Music |
| "Superman" | 2011 | 55 | 7 | — | 3,000 | | Vivid |
| "Delicious na Kinyōbi" (デリシャスな金曜日, "Delicious Friday") | 2012 | 171 | 9 | — | 400 | | Vivid |
| "Haruarashi" (ハルアラシ, "Spring Storm") | 2012 | 171 | — | — | 400 | | Vivid |
| "Forever" | 2012 | — | 6 | — | | | Vivid |
| "Busy Doing Nothing" | 2014 | — | — | — | | | non-album singles |
| "Rule Your World" | 2014 | — | — | — | | | non-album singles |
| "Dum Ditty Dumb" | 2014 | — | — | — | | | non-album singles |
| "Kimi ga Ita kara" (君がいたから, "Because You Were There") | 2015 | 27 | 21 | — | 6,000 | RIAJ (digital): Gold | Shine |
| "Revolution" (featuring Namie Amuro) | 2015 | 6 | 8 | 4 | 19,000 | | Shine |
| "Nando de Mo" (何度でも, "Many Times") | 2015 | — | 16 | — | | RIAJ (digital): Gold | Shine |
| "Sakura" (サクラ, "Cherry Blossoms") | 2016 | 30 | — | — | | | For You |
| "Lovin' You" | 2016 | 149 | — | — | | | For You |
| "Faces" | 2017 | — | — | — | | | For You |
| "Shiawase tte." (幸せって。, "You are happy.") | 2018 | — | 80 | — | | | For You |
| "Beautiful" | 2019 | — | — | — | | | non-album single |
| "Sangatsu Kokonoka" (３月９日, "March 9th") | 2020 | — | — | — | | | I Sing |
| "Utautai no Ballad" (歌うたいのバラッド, "Ballad I want to sing") | 2020 | — | — | — | | | I Sing |
| "I Love..." | 2020 | — | — | — | | | I Sing |
| "Hitori Ja Naikara" (ひとりじゃないから, "Because I'm not alone") | 2021 | — | — | — | | | Non-album singles |
| "Say My Name" (with Tetsu) | 2021 | — | — | — | | | Non-album singles |
| "Just for One Night" (with Bsmntprty and Niko Brim) | 2021 | — | — | — | | | Non-album singles |
| "Gimme Some" (with Daichi Yamamoto) | 2022 | — | — | — | | | Non-album singles |
| "No Pressure" (featuring VivaOla) | 2022 | — | — | — | | | Non-album singles |
| "Love Me" | 2022 | — | — | — | | | Non-album singles |
| "Start Again" | 2023 | — | — | — | | | Start Again EP & A2Z |
| "How You Feel" | 2023 | — | — | — | | | Start Again EP & A2Z |
| "Spark" | 2023 | — | — | — | | | Start Again EP & A2Z |
| "That Girl" | 2024 | — | — | — | | | TBA |
| "—" denotes items which were released before the creation of the Billboard Japan Hot 100, or did not chart. ||||||||

### As a featured artist

List of singles, with selected chart positions :
| Title | Year | Peak chart positions | Peak chart positions | Sales (JPN) | Album |
| Title | Year | JPN | JPN Hot | Sales (JPN) | Album |
| "Lost Child" (Hiroshi Fujiwara and Shinichi Osawa featuring Crystal Kay) | 2001 | 55 | — | 15,000 | Satorare Original Soundtrack / 637: Always and Forever |
| "Reeewind!" (M-Flo loves Crystal Kay) | 2003 | 9 | — | 50,000 | Astromantic |
| "Universe" (BoA featuring Crystal Kay and Verbal of M-Flo) | 2009 | 8 | — | 22,000 | Best & USA |
| "Lovin' You" (ラヴィン・ユー, Ravin Yū) (Shota Shimizu, Crystal Kay, Mummy-D, Seamo, Dohzi-T) | 2010 | — | — | | Beat Connection |
| "All You Need Is Love" (among Japan United with Music) | 2012 | 11 | 11 | 26,000 | Non-album single |
| "Answer" (with Tee) | 2012 | 77 | 16 | 1,000 | Much Love |
| "Where the Wild Things Are" (Far East Movement featuring Crystal Kay and Stereotypes) | 2012 | — | — | | Dirty Bass |
| "Physical" (Bradberry Orchestra featuring Suga Shikao, Crystal Kay and Salyu) | 2012 | — | 72 | | Non-album single |
| "Fantastic Journey" (Daishi Dance featuring Crystal Kay) | 2012 | — | — | | Wonder Tourism |
| "Inochi no Rhythm" (イノチノリズム, "Rhythm of Life") (among Dance Earth Party) | 2013 | 5 | 5 | 20,000 | Non-album single |
| "Rock City" (Exile Shokichi featuring Sway & Crystal Kay) | 2016 | — | — | | The Future |
| "Play That" (PKCZ featuring Hiroomi Tosaka, Crystal Kay & CRAZYBOY) | 2017 | — | — | | 360° ChamberZ |
| "Hot Like You (Fire)" (Freddy Browne featuring Jimmy Cozier & Crystal Kay) | 2018 | — | — | | The Recipe |
| "Anata no Shiranai Watashitachi" (あなたの知らない私たち, "The Us You Don't Know") (chay featuring Crystal Kay) | 2018 | 61 | — | | Lavender |
| "—" denotes items which were released before the creation of the Billboard Japan Hot 100 or did not chart. ||||||

### Promotional singles

List of promotional singles, with selected chart positions :
| Title | Year | Peak chart positions | Album |
| Title | Year | JPN Hot | Album |
| "Shining" | 2007 | — | Shining |
| "Step by Step" | 2009 | 52 | Best of Crystal Kay |
| "Flash" | 2010 | 40 | Flash |
| "Time of Love" | 2010 | — | Spin the Music |
| "Take It Outside" | 2012 | — | Vivid |
| "Memory Box" | 2012 | — | Vivid |
| "What We Do" | 2012 | — | Vivid |
| "My Heart Beat" | 2013 | — | Non-album songs |
| "Kaze no Kanata" (風の彼方, "The Other Side of the Wind") | 2013 | — | Non-album songs |
| "Very Special" (featuring Ryuji Imaichi (Sandaime J Soul Brothers from Exile Tribe) | 2015 | 60 | Shine |
| "Rain on Me" (with Sumire, Tigarah & Ukico) | 2020 | — | Non-album song |
| "Steady" | 2021 | — | Speed Spirits |
| "—" denotes items that were released before the creation of the Japan Hot 100, or did not chart. ||||

## Video albums

List of media, with selected chart positions :
| Title | Album details | Peak positions |
| Title | Album details | JPN |
| CK 99—04 Music Clips | Released: June 30, 2004 (JPN) Label: Epic Formats: DVD, UMD | 19 |
| CK 04—09 Music Clips 2: Decade | Released: December 2, 2009 (JPN) Label: Epic Formats: DVD | 253 |
| Crystal Kay Live in NHK Hall: 10th Anniversary Tour CK10 | Released: June 16, 2010 (JPN) Label: Epic Formats: DVD, Blu-ray | 122 |
| CK Live 2012: Vivid | Released: March 6, 2013 (JPN) Label: Universal Formats: DVD | — |
| "—" denotes items that did not chart. |||