Question: The singer who contributed vocals to the track "You Know What It Is" was a member of what hip hop group?

full_context: Document 1: Wyclef Jean: Nel Ust Wyclef Jean ( ; born on October 17, 1969), better known by his professional name Wyclef Jean, is a Haitian rapper, musician and actor. At the age of nine, Jean emigrated as a child to the United States with his family and settled there. He first achieved fame as a member of the New Jersey hip hop group the Fugees. Jean has won three Grammy Awards for his musical work.
Document 2: Tha Carter II: Tha Carter II is the fifth studio album by American rapper Lil Wayne. It was released on December 6, 2005, by Cash Money Records and Universal Distribution. Recording sessions took place from 2004 to 2005, with Birdman and his brother Ronald "Slim" Williams serving as the records executive producers, while both of them enlisted the additional production on the Wayne's album such as The Runners and The Heatmakerz, among others. The album serves as a sequel to his fourth album "Tha Carter" (2004), and it incorporates the southern hip hop styles. The album was supported by three singles: "Fireman", "Hustler Musik" and "Shooter" featuring Robin Thicke.
Document 3: I Know You See It: "I Know You See It" is a song written and recorded by American rapper Yung Joc and featuring Brandy Hambric. It was released as the second single off his debut album "New Joc City". It reached number 17 on the "Billboard" Hot 100 and number 5 on the U.S. Hot R&B/Hip-Hop Songs chart. It also peaked at number 5 on the U.S. Rap Songs chart. The video for the song first premiered on MTV's "Making the Video".
Document 4: T.I. discography: American rapper T.I. has released nine studio albums, one remix album, five extended plays (EPs), 13 mixtapes, 110 singles (including 61 as a featured artist) and 11 promotional singles. He has also released one music video album and over 60 music videos, the details of which are included in his videography. Throughout his career, T.I.'s music has been released on several record labels, including Artista and Atlantic, as well as his own label imprint, Grand Hustle Records. T.I. has also served as an executive producer for several projects other than his own, including Big Kuntry King's debut "My Turn to Eat" (2008), B.G.'s "Too Hood 2 Be Hollywood" (2009), B.o.B's debut "The Adventures of Bobby Ray" (2010) and Iggy Azalea's debut EP "Glory" (2012), as well as her debut album "The New Classic" (2014). In 2005, T.I. had executive produced the soundtrack to the film "Hustle & Flow" and released the collection through his record label. T.I. is also a noted record producer, having produced several song recordings, a few under the pseudonym T.I.P.. He has also served as a ghostwriter and assisting songwriter, for several artists, such as Bow Wow, Sean "Diddy" Combs, Dr. Dre, Bun B and Keyshia Cole.
Document 5: Pras: Pras ( ; born Prakazrel Samuel Michél; October 19, 1972) is an American rapper, record producer, songwriter and actor. He is best known as one of the founding members of the critically acclaimed hip hop group Fugees, which included Wyclef Jean and recording artist Lauryn Hill.
Document 6: I Know (Yo Gotti song): "I Know" is a song by American hip hop recording artist Yo Gotti. The song was released on November 15, 2013, as the fourth single from his fourth studio album, "I Am" (2013). "I Know" features a guest appearance from rapper Rich Homie Quan who produced the song along with Trauma Tone. The song samples Club Nouveau's "Why You Treat Me So Bad", the same song sampled on Luniz's prolific "I Got 5 On It". Following its release, the song peaked at number 31 on the US "Billboard" Hot R&B/Hip-Hop Songs chart.
Document 7: You Already Know (song): "You Already Know" is a song recorded by American singer and rapper Fergie, featuring guest vocals from Trinidadian-American rapper Nicki Minaj. It was released on August 25, 2017, alongside promotional single "Hungry" as the fourth single from Fergie's second studio album, "Double Dutchess" (2017), the same day the album was made available for pre-order. "You Already Know" is impacted mainstream and rhythmic radio on September 12, 2017. As of September 2017, "You Already Know" moved 23,800 copies in the United States according to Nielsen SoundScan.
Document 8: You Know What It Is: "You Know What It Is" is a song by American hip hop recording artist T.I., released July 10, 2007, as the second single from his fifth studio album "T.I. vs. T.I.P." (2007). The song was produced by Jerry "Wonda" Duplessis and Wyclef Jean, the latter of whom contributes vocals throughout the track. It debuted at #73 on Billboard's R&B/Hip Hop Songs on June 28, 2007, later peaking at #11. It later debuted on the "Billboard" Hot 100 at number 68 in July, later peaking at #34.
Document 9: Go Get It: "Go Get It" is a song by American hip hop recording artist T.I., released July 17, 2012, as the first single from his eighth studio album "" (2012). The song was produced by Canadian hip hop and R&B producer T-Minus, who T.I. previously collaborated with on "Poppin Bottles", featuring Drake, from his seventh studio album "No Mercy" (2010). Before its official release, the song had leaked online earlier in June. This song is featured on EA Sports UFC 2.
Document 10: Perfect Gentleman (Wyclef Jean song): "Perfect Gentleman" is the third single released from American recording artist Wyclef Jean's second studio album, "". It features a guest verse by rapper and co-writer Hope Harris. In the United States, the song reached number eight on Hot R&B/Hip-Hop Songs, and failed to chart on the "Billboard" Hot 100. Outside the United States, "Perfect Gentleman" peaked within the top ten of the charts in the United Kingdom, where the song was certified gold by the British Phonographic Industry.
Document 11: Fugees: Fugees (sometimes The Fugees; formerly Tranzlator Crew) were an American hip hop group who rose to fame in the early-1990s. Their repertoire included elements of hip hop, soul and Caribbean music, particularly reggae. The members of the group were rapper/singer/producer Wyclef Jean, rapper/singer/producer Lauryn Hill, and rapper/producer Pras Michel. Deriving their name from the term refugee, Jean and Michel are Haitian, while Hill is American.
Document 12: Welcome to Haiti: Creole 101: Welcome To Haiti: Creole 101 is the fifth studio album released by Haitian rapper Wyclef Jean. The album was released on October 5, 2004. The album is a contrast to Jean's previous albums, as many of the track are Caribbean-influenced and sung in different languages. "President" was the only single released from the album. The album's track listing differs between the United States and Europe. The album's lyrics have political themes.
Document 13: Can't Tell Me Nothing: "Can't Tell Me Nothing" is a song by American hip-hop recording artist Kanye West. It was released on May 15, 2007 as the lead single of his third studio album, "Graduation". The song was produced by Kanye West and Atlanta record producer DJ Toomp. It received acclaim from music critics and was listed amongst the best tracks of the year by several publications. "Can't Tell Me Nothing" was nominated for Best Rap Song at the 50th Grammy Awards, but lost to another one of West's songs, "Good Life". Since its release, West has continually reiterated that it is his favorite song he's done. In 2012 Complex named it their song of the decade.
Document 14: Fugees discography: The discography of the Fugees, an American hip hop trio consisting of rapper/singer Lauryn Hill and rappers Pras Michel and Wyclef Jean, consists of two studio albums, one compilation album, one remix album and nine singles (including one as featured artists) and nine music videos. After the group formed in the 1980s under the name Tranzlator Crew, they signed to Ruffhouse Records and Columbia Records in 1993; they then changed their name to Fugees – an abbreviation of "refugees", also a reference to Haitian immigrants.
Document 15: Haitian hip hop: Haitian hip hop or rap kreyòl, is music originating from Haiti and sung by artists of Haitian origin. Often, hardcore beats are used while the artist raps in Haitian Creole. Rap kreyòl has been part of Haitian culture since the early 1980s with groups such as Original Rap Staff, King Posee, Rap Kreyòl S.A., Masters of Haiti, Fighters, Blackdo, Fam-Squad, Supa Deno, Prince Berlin and Muzion attaining prominence, but lately has become very popular with Haitian youth. Another notable group from the 1990s is Black Leaders. The impact of Black Leaders and its members is lasting. Though known primarily for his role in Black Leaders, Don Roy is still an active contributor to Haitian music across many genres. Since the peak of his notoriety, Don Roy has chosen to create in other genres. While still working in a production capacity in genres such as Rap Kreyòl and Reggae, Don Roy has chosen to create and work with prominent artists of the modern roots/Rasin movement.
ground_truth: Fugees