Question: What year was the debut single of the singer of "3am (Pull Up)"?

full_context: Document 1: Cheryl discography: The discography of English recording artist Cheryl consists of four studio albums, one extended play, nine singles (excluding three as a featured artist), and fourteen music videos. Cheryl's first foray into a solo music career occurred when she featured on will.i.am's "Heartbreaker". After having streetdancing lessons during the filming of "Passions of Girls Aloud" series, Cheryl was picked to appear in the song's video. She was later asked to sing the female vocals on the UK release of the track, which reached number four in the United Kingdom and sold over 250,000 copies, giving the single a silver certificate by the BPI. It was the 31st best selling single of 2008. Cheryl's solo career began in October 2009 with the release of "Fight for This Love", the lead single from her debut studio album, "3 Words". The track saw Cheryl achieve her first solo number-one single when it topped the UK chart, while also attaining international chart success; peaking within the top 10 in the likes of France, Germany and the Netherlands. The parent album debuted at number one in the UK with sales of 125,271. On 6 November 2009 the British Phonographic Industry (BPI) certified the album platinum. It has since gone 3× Platinum, with sales of over 1,000,000 copies. "3 Words" is both the opening and title song from her debut studio album. It was released in the UK and Ireland on 20 December 2009 went on to become Fernandez-Versini's second consecutive UK top-five and Irish-top ten hit. It was also a top five hit in Australia and has since been certified platinum by the Australian Recording Industry Association and gold by the British Phonographic Industry. "Parachute" was released on 11 March 2010 as the album's third and final single. "Parachute" became Cheryl's third consecutive solo UK top five hit, and her third Irish top 10 hit. It was nominated for a Brit Award in 2011.
Document 2: Kolma N'arrab: Kolma N'arrab (Whenever We Come Closer) is the eighteenth full-length Arabic studio album from Egyptian pop singer Angham. The album was released on 10 June 2007 in Egypt, on 15 June 2007 in Middle East, and 3 July 2007 worldwide. On the first day of its release, the album's tracks were available to buy from iTunes. The album features what Angham describes as "an image of who she actually is, without retouch or fakeness, exposing to her audience her raw personality." The album has been both a critical and commercial success, after a commercially failed previous album despite its creativity, and has so far sold in excess between 850 000 and 980 000 copies in the Middle East. Some sources revealed that Rotana, Mazzika and Dream channels confirmed that the record of Kolma Nearrab is 800 000 CD, placing the record in a second position among the best-selling records released in 2007 in Middle East. Moreover, "elBayan" newspaper stipulated that the record sold half a million CD since August 18, 2007 and the number of sales is still escalating. Broadcast intensively one week prior to the album's release in the market, its first single "Kolma N'arrab" was filmed as a music video by director Ahmad elMahdy in Egypt and was ranked, upon its arrival to Rotana's Top 20 chart, at rank eleven before it moved to rank one after seven consecutive weeks. Rotana's spokesperson, Tony Semaan, assured the record has now a platinum certification.
Document 3: I'm Up (Young Thug mixtape): I'm Up is a mixtape by American rapper Young Thug. It was released on February 5, 2016, by 300 Entertainment and Atlantic Records. The mixtape features guest appearances from Trouble, Ralo, Lil Durk, Solo Lucci, Young Butta, Quavo, Offset, Dora and Dolly (Young Thug's sisters).
Document 4: Azealia Banks: Azealia Amanda Banks ( born May 31, 1991) is an American rapper, singer-songwriter, and actress. Raised in the Harlem neighborhood of New York City, Banks began releasing music through MySpace in 2008, eventually being signed to XL Recordings at age 17. After releasing her debut single "212", she secured a recording contract with Interscope and Polydor Records, and later released her first extended play "1991" (2012). Banks' debut studio album "Broke with Expensive Taste" experienced several delays since its initial announcement before being released in 2014. In 2016, she released the mixtape "Slay-Z". Her is due to be released on October 31, 2017. Banks' outspoken views and controversial social media presence have been the subject of media scrutiny throughout her career.
Document 5: Natalia Keery-Fisher discography: The English singer-songwriter Natalia Keery-Fisher has released two studio albums, two extended play (EP), and seven singles as an artist, as well as four as a featured artist, and thirteen music videos. She began her musical career by releasing a standalone single, entitled "Don't Play Nice", under the alias of Verbalicious, with label All Around the World. Although the song reached number eleven in the United Kingdom, the label went bankrupt shortly after the song's release. In 2008, Sinclair collaborated with French recording artist M. Pokora in the song "They Talk Shit About Me", as Verse. Sinclair later changed her stage name to Natalia Cappuccini and released the extended play "Wommanequin" independently.
Document 6: Drop That Kitty: "Drop That Kitty" is a song by American rapper Ty Dolla Sign, featuring English singer Charli XCX and American singer Tinashe. The track was produced by Stargate and Cashmere Cat. The song was written by Ty Dolla Sign, Tinashe, and Charlotte Atichison. It was released as digital download in the United States on February 17, 2015, originally intended as the first single from "Free TC" but was later scrapped. Sign raps the track's main verses, while XCX sings its chorus hook and Tinashe its bridge and pre-chorus hook. The lyrical content in the song serve as a four-step dance instructional and contain several sexual euphemisms and innuendos. It discusses a scenario of meeting someone attractive in a club and communicating basest desires to them, while extolling the virtues of physical flexibility.
Document 7: Charli XCX: Charlotte Emma Aitchison (born 2 August 1992), better known by her stage name Charli XCX, is a British singer and songwriter. She released her debut single independently in 2008 and initially performed at warehouse raves in London. She signed to Asylum Records in 2010 and released two mixtapes in 2012, "Heartbreaks and Earthquakes" and "Super Ultra". In April 2013, XCX released her major label debut album, "True Romance"; it contained a number of singles which were previously released, including "Nuclear Seasons", released in 2011, and "You're the One", released under Warner Music in 2012.
Document 8: Angels (Chance the Rapper song): "Angels" is a song by American hip hop recording artist Chance the Rapper. The song was released on October 27, 2015 as the lead single from his third solo mixtape, "Coloring Book" (2016). The track, produced by Lido and The Social Experiment, features vocal by fellow Chicago rapper Saba.
Document 9: XXX (Kendrick Lamar song): "XXX" (stylized as "XXX.") is a song by American rapper Kendrick Lamar, from his fourth studio album "Damn", released on April 14, 2017. The eleventh track on the album, the song was written by Lamar, Mike Will Made It, DJ Dahi, Sounwave, Anthony Tiffith, Bono, The Edge, Adam Clayton, and Larry Mullen Jr., and produced by Mike Will Made It, DJ Dahi, and Sounwave, with additional production by Top Dawg and Bēkon. The song features a sample of the yet-to-be released song "American Soul" by Irish rock band U2.
Document 10: Maybe (No Angels song): "Maybe" is a song performed by all-female German pop group No Angels. It was written and composed by Pelle Ankarberg, Niclas Molinder, Maryann Morgan, and Joacim Persson and originally recorded by American-Norwegian pop singer Trine Rein, featuring strings by violinist Andreas Ljones. An uplifting rock pop song that features a heavy guitar riff sample, it incorporates an uncredited sample of The Beatles' 1969 number-one record "Come Together", while its lyrics revolve around relationship that is built upon contingence and hesitancy.
Document 11: Angel Haze discography: American rapper Angel Haze has released one studio album, one internet album, two extended plays (EPs), four mixtapes and nineteen singles (including four as a featured artist and nine promotional singles). In July 2012, after releasing two prior mixtapes, Haze released a mixtape "Reservation" online for free. The title is inspired by the act of reserving a table at a restaurant, saying "[...] For me, it's like that with the rap industry. I made my reservation there [...] and now I'm finally arriving". The lead single "New York" peaked at number 58 on the UK Singles Chart, and number 12 on the UK R&B Singles Chart. Shortly after, Haze released a commercial EP compiled of tracks from "Reservation", titled "New York", followed by a fourth mixtape, "Classick". Throughout late 2013, during the run-up to the release of the debut album, Haze released a cover of a popular song every day, for thirty days. Most famous from these freestyles was the adaptation of Macklemore and Ryan Lewis's track "Same Love", which discusses childhood, prejudice, homophobia and sexuality. The series was dubbed "30 Gold".
Document 12: 3AM (Pull Up): "3am (Pull Up)" is a song recorded by English singer-songwriter Charli XCX, written for her mixtape "Number 1 Angel" (2017). The song features Danish singer and songwriter MØ. The song received positive reviews from critics, with some considering it a highlight of the mixtape.
Document 13: Lorde discography: New Zealand singer and songwriter Lorde (Ella Yelich-O'Connor) has released two studio albums, three extended plays, eight singles and four music videos. At the age of 13, she was signed to Universal Music Group (UMG) and started to write music. In November 2012, when she was 16 years old, she self-released "The Love Club EP" via SoundCloud. The EP was released for sale by UMG in March 2013; a song from the EP, "Royals", became a hit in New Zealand in early 2013. Later that year, "Royals" topped numerous mainstream charts internationally, including the US "Billboard" Hot 100. With "Royals", Lorde became the first New Zealand solo artist to reach number one on the US Hot 100.
Document 14: Charlotte (Air Traffic song): "Charlotte" is a single by Bournemouth-based alternative rock band Air Traffic. Taken from the band's debut studio album "Fractured Life", the track was released through Tiny Consumer, a record label division of EMI. "Charlotte" was first released as part of the band's debut single, a double a-side with "Just Abuse Me", on July 17, 2006. The single was released as the fifth in a series of black and white vinyls by Label Fandango - the independent record label of live music promotion company Club Fandango - which was the band's record label at the time.
Document 15: Little Mix discography: The discography of British girl group Little Mix consists of four studio albums, seventeen singles and eighteen music videos. Having become the first ever group to win the show, winners of "The X Factor" Little Mix released their debut single "Cannonball" a cover of Damien Rice's single in December 2011. The single became the group's first number-one single when it topped the UK Singles Chart. The lead single from their debut album "Wings" became their second number one single in the UK. It also reached number three in Australia and number 14 in the New Zealand. In November 2012, Little Mix released their debut album "DNA". The album peaked inside the top 10 in ten countries, including the UK where it debuted number three. The album has been certified Platinum in the UK where it has sold 391,447 copies there as of April 2016. In May 2013, the group released their debut album in the United States, where it debuted at number four, becoming the highest debut from a British girl group in the US, beating a record previously held by the Spice Girls, who debuted at number six with their debut album "Spice" in 1996. "DNA" spawned three more singles; the top three hit and title track "DNA" and the top 20 singles "Change Your Life" and "How Ya Doin'?".
ground_truth: 2008