Question: Which singer is older, Beyoncé or Han Seung-yeon?

Context articles: List of Beyoncé live performances
Age of Youth
Han Seung-yeon
B'Day (Beyoncé album)
If I Were a Boy
Age of Youth 2
List of songs recorded by Beyoncé
Beyoncé
Han Han
Green Light (Beyoncé song)

American singer Beyoncé has embarked on six concert tours during her solo career, four of which have been worldwide and two of which have been collaborative.
 Her solo tour debut (whilst on hiatus with Destiny's Child) began in 2003, with the Dangerously in Love Tour.
 Based predominantly in the United Kingdom, the tour received an unfavorable review from Dave Simpson of "The Guardian" based on Beyoncé's costumes and a confusion of her core audience at the time.
 In 2007, she embarked on her first major solo world tour – The Beyoncé Experience, following Destiny's Child's disbandment in 2005.
 The tour visited five continents and Beyoncé was lauded by music journalism for her simultaneous dancing and singing abilities.
 Following the release of her 2008 third studio album "I Am... Sasha Fierce", Beyoncé embarked on her next world concert venture, the I Am... World Tour.
 She collaborated with Thierry Mugler exclusively for the tour's costumes.
 The I Am... World Tour also marked the first time Beyoncé had performed in South American countries.
 Beyoncé saw her most commercially successful tour to date with 2013-2014's The Mrs. Carter Show World Tour.
 Grossing US $229,727,960, the 132 date venture was criticised for the name of the tour, as Beyoncé appeared to be letting herself be known as simply Shawn "Jay-Z" Carter's wife, despite being proclaimed as a "modern-day feminist".
 The tour itself however was lauded by music critics, who again praised Beyoncé's performance abilities and the more advanced production seen compared to her previous tours.
Age of Youth () is a South Korean television series starring Han Ye-ri, Han Seung-yeon, Park Eun-bin, Ryu Hwa-young and Park Hye-soo.
 It replaced "Mirror of the Witch" and aired on cable network JTBC on Fridays and Saturdays at 20:30 (KST) for 12 episodes from July 22 to August 27, 2016.
Han Seung-yeon (born July 24, 1988), better known mononymously as Seungyeon, is a South Korean singer and actress.
 She is best known as former main vocalist of the South Korean girl group Kara.
B'Day is the second studio album by American singer Beyoncé.
 It was released to coincide with her twenty-fifth birthday on September 4, 2006 through Columbia Records, Music World Entertainment, and Sony Urban Music, and three days earlier in Latin America through Sony BMG Music Entertainment.
 The record was originally planned as a 2004 follow-up to Beyoncé's debut studio album "Dangerously in Love" (2003), however it was delayed to accommodate the recording of Destiny's Child's final studio album "Destiny Fulfilled" (2004) and her starring role in the film "Dreamgirls" (2006).
 While on vacation after filming "Dreamgirls", Beyoncé began contacting various producers; she rented Sony Music Studios, and completed "B'Day" in three weeks.
 Most of the lyrical content of the album was inspired by Beyoncé's role in the film.
 The album's musical style ranges from 1970s–80s funk influences and balladry to urban contemporary elements such as hip hop and R&B.
 Live instrumentation was employed in recording most of the tracks as part of Beyoncé's vision of creating a record using live instruments.
"If I Were a Boy" is a song performed by American singer and songwriter Beyoncé from her third studio album "I Am... Sasha Fierce" (2008).
 It was written by BC Jean and Toby Gad, who also handled its production alongside Beyoncé.
 Inspired by the difficult break-up of a romantic relationship, the song was initially recorded by Jean, whose record company rejected it.
 Beyoncé then recorded her own version.
 Jean was upset when she learned that Beyoncé was releasing it as a single, but eventually they reached an agreement.
 Columbia Records released "If I Were a Boy" to US radio on October 8, 2008, as the album's lead single alongside "Single Ladies (Put a Ring on It)".
 The two songs showcased the contrast between Beyoncé's personality and her aggressive onstage persona, Sasha Fierce.
 A Spanish version of the song, titled "Si Yo Fuera un Chico", was digitally released in Mexico and Spain.
Age of Youth 2 () is a South Korean television series starring Han Ye-ri, Han Seung-yeon, Park Eun-bin, Ji Woo and Choi Ah-ra.
 It is the sequel to the 2016 drama "Age of Youth".
 The series premiered on August 25, 2017 and airs on cable network JTBC on Fridays and Saturdays at 23:00 (KST).
American singer Beyoncé rose to fame in the late 1990s as the lead singer of the R&B girl group Destiny's Child, one of the world's best-selling girl groups of all time.
 During the hiatus of the girl group in 2002, Beyoncé embarked on her solo career that she pursued following the disbandment of the group in 2005.
 She has written and recorded material for her six studio albums, namely "Dangerously in Love" (2003), "B'Day" (2006), "I Am... Sasha Fierce" (2008), "4" (2011), her self-titled album, "Beyoncé" (2013), and her second visual album "Lemonade" (2016).
 Apart from her work in music, Beyoncé has launched a career in acting.
 She made her debut in the 2001 musical film "", prior to appearing in major films, including "Austin Powers in Goldmember" (2002), "The Pink Panther" (2006), "Dreamgirls" (2006), Epic, and "Cadillac Records" (2008).
 She has written and recorded material for the soundtrack albums of all the mentioned movies.
 Beyoncé has also lent her vocals to several recordings for specific charitable causes and other tracks that were used in television advertisements. Songs included in this list are from her studio albums, extended plays, soundtrack albums, live albums, mixtapes, and collaborations with other recording artists on their respective albums.
 Many of them were released as singles and have been successful both stateside and in international markets.
 Also included in this list are songs that Beyoncé recorded, but remain unreleased or were never officially released.
Beyoncé Giselle Knowles-Carter ( ; born September 4, 1981) is an American singer, songwriter, dancer, and actress.
 Born and raised in Houston, Texas, Beyoncé performed in various singing and dancing competitions as a child.
 She rose to fame in the late 1990s as lead singer of the R&B girl-group Destiny's Child.
 Managed by her father, Mathew Knowles, the group became one of the world's best-selling girl groups in history.
 Their hiatus saw Beyoncé's theatrical film debut in "Austin Powers in Goldmember" (2002) and the release of her debut album, "Dangerously in Love" (2003).
 The album established her as a solo artist worldwide, earned five Grammy Awards, and featured the "Billboard" Hot 100 number-one singles "Crazy in Love" and "Baby Boy".
Han Han (born September 23, 1982) is a Chinese professional rally driver, best-selling author, singer, creator of "Party", One (App magazine) and China's most popular blogger.
 He has published five novels to date, and is represented by the Hong Kong-based Peony Literary Agency.
 He is also involved in music production.
 In May 2010, Han Han was named one of the most influential people in the world by "Time" magazine.
 In September 2010, British magazine "New Statesman" listed Han Han at 48th place in the list of "The World's 50 Most Influential Figures 2010".
 In June 2010, Han Han was interviewed by CNN as China's rebel writer who has become the unofficial voice for his generation.
"Green Light" is a song recorded by American singer Beyoncé.
 The song was written by Beyoncé, Sean Garrett, and Pharrell for Beyoncé's second solo studio album, "B'Day" (2006).
 Produced by The Neptunes, it was released as the fifth UK and seventh overall single on July 30, 2007 through Columbia Records.
 "Green Light" is an R&B-funk song with lyrics detailing a break-up song in which the female protagonist gives her love interest the permission to move out.
 The song also finds Beyoncé using fairly aggressive tone.
 Written in the key of F minor, "Green Light" samples the "uh-oh-oh-oh-oh" vocals which music critics noted to have a flagrant resemblance to Beyoncé's own 2003 hit single, "Crazy in Love".
 A remix of the song features American rapper Young Buck.