Question: Still Da Baddest is the fourth studio album by American rapper Trina, following the poor chart performance, "I Got a Thang for You" featuring which American singer/songwriter, record producer, business woman, and television personality, and was born in Oakland, California?

full_context: Document 1: Da Baddest Bitch: Da Baddest Bitch is the debut album by American rapper Trina. It was released on March 21, 2000 through the label Atlantic/Slip-N-Slide Records. The album debuted at number thirty-three on the US The Billboard 200 and number eleven on the Top R&B/Hip-Hop Albums chart, and entered the "Top R&B/Hip-Hop Catalog Albums" in 2002.
Document 2: Tru 2 da Game: Tru 2 da Game is the fourth studio album released by New Orleans hip-hop group, TRU. It was released February 18, 1997 on No Limit Records and was produced by Beats By the Pound . The album found a large amount of success, peaking at #8 on the "Billboard" 200 and #2 on the Top R&B/Hip-Hop Albums. A single from the album enititled "I Always Feel Like..." also found some success, peaking at #71 on the "Billboard" Hot 100, #11 on the Hot Rap Singles and #42 on the Hot R&B/Hip-Hop Singles & Tracks. The same year the album was re-released with the song "Smoking Green" removed. The re-released version included three new songs, a remixed version of "FEDz", a C-Murder solo song "Eyes Of A Killa" and a Silkk The Shocker solo song "Pimp Shit." "FEDz" samples Aaliyah's hit single "If Your Girl Only Knew". The album was certified 2x Platinum by the RIAA, on October 2, 1997, and remains the group's most successful album.
Document 3: Kesha: Kesha Rose Sebert ( ; born March 1, 1987; formerly stylized as Ke$ha) is an American singer, songwriter and rapper. In 2005, at age 18, Kesha was signed to producer Dr. Luke's label Kemosabe Records. Her breakthrough came in early 2009 after appearing on American rapper Flo Rida's number-one single "Right Round". Kesha's music and image propelled her to immediate success, with her debut album "Animal" premiering at the top of the charts in several countries. She achieved 3 more number-one singles, "Tik Tok" and "We R Who We R" as a solo artist, and "Timber" as a featured artist. At the same time, she continued to write songs for other artists, becoming respected as a songwriter. "Warrior", her second studio album, was released in 2012, and spawned her eighth consecutive top-ten single "Die Young". "Tik Tok", at one point, was the best-selling digital single in history, selling over 14 million units internationally.
Document 4: You da Baddest: "You da Baddest" is a song by American rapper Future featuring Trinidadian rapper Nicki Minaj. It was released on July 28, 2017 as the fourth single from Future's sixth studio album, "HNDRXX" (2017). The song was written by Future and Minaj along with producer Detail and Andre Price, and was produced by Detail and Go Grizzly.
Document 5: Kelis discography: American singer and songwriter Kelis has released six studio albums, one live album, one compilation album, 38 singles (including 20 as a featured artist), and 29 music videos. At age 16, she left her parents' home and was signed to Virgin Records four years later. Her debut single, "Caught Out There", was released in 1999, reaching number 54 on the "Billboard" Hot 100 and number four in the United Kingdom. Her debut album, "Kaleidoscope", was released in December 1999 and charted at number 144 on the "Billboard" 200, and has sold 249,000 copies in the country to date. In the United Kingdom, it was certified gold and has sold over 167,000 copies. Two more singles were released from the album, "Good Stuff" and "Get Along with You", and charted moderately well internationally. In 2001, she released her second studio album, "Wanderland", which features similar "raw emotion and sophisticated musicianship" of her debut album. The album was not released in the United States and the only single, "Young, Fresh n' New", charted poorly.
Document 6: Single Again: "Single Again" is the lead single from Miami rapper Trina's fourth album "Still da Baddest". Trina confirmed on Myspace, that it will be the first single from the album.
Document 7: Keri Hilson: Keri Lynn Hilson (born December 5, 1982) is an American singer, songwriter, and actress. She was born and raised in Decatur, Georgia, and spent most of her youth working with producer Anthony Dent, as a songwriter and background vocalist for several R&B and hip hop artists. By the age of 14, Hilson had secured a record deal with the girl group D'Signe, who later disbanded. She attended Oxford College of Emory University in Georgia, while she continued writing songs for artists, including Britney Spears, The Pussycat Dolls, and Mary J. Blige, with the production and songwriting team, The Clutch. In 2006, Hilson signed with American rapper and producer Timbaland's record label, Mosley Music. Her breakthrough came the following year after appearing on Timbaland's single "The Way I Are", which topped charts around the world.
Document 8: Still da Baddest: Still Da Baddest is the fourth studio album by American rapper Trina. It was released on April 1, 2008, by Slip-n-Slide, EMI and DP Entertainment. The album was preceded by the lead single, "Single Again" on November 6, 2007. Following the poor chart performance, "I Got a Thang for You" featuring Keyshia Cole, was released as the album's second single. The album's third and final single "Look Back at Me" featuring Killer Mike, which it was produced by Hard Hat Productions, became a regional hit club record and accompanied by a music video.
Document 9: I Got a Thang for You: "I Got a Thang for You" is the second single from Miami-based rapper Trina's fourth album "Still da Baddest". The song features American R&B singer Keyshia Cole. It was chosen after much speculation and talk about the second single. The song was produced by Kane da Kameleon, while the chorus was written by Midus, both of Slick Salt Entertainment.
Document 10: Kehlani: Kehlani Ashley Parrish (born April 24, 1995) is an American singer-songwriter and a dancer, signed to Atlantic Records. Kehlani was originally from Oakland, California, where she achieved initial fame as a member of the teen pop group Poplyfe. In 2014, she released her first commercial mixtape, "Cloud 19". The mixtape was listed as one of the among of "Complex"' s "50 Best Albums of 2014." In 2015, Kehlani released her second commercial mixtape, "You Should Be Here". The mixtape debuted at number 5 on the national R&B/Hip-Hop chart, preceded from her sold-out North American promotional tour. In 2016, she was nominated for the Best Urban Contemporary Album Grammy Award for "You Should Be Here". Kehlani released her first major-label debut album, "SweetSexySavage" on January 27, 2017.
Document 11: Some Cut: "Some Cut" is the 2nd single from Trillville's debut album "". The song features Cutty. It is their highest charting single. It is their only top 15 single to date, making Trillville and Cutty "one hit wonders". The song is known for its signature "bed squeaking" portion of the instrumental and has been sampled in such hits as "Or Nah" by Ty Dolla Sign and "Bad" by Wale as well as the chorus of "Some Cut" being interpolated in the Tiara Thomas original solo version of "Bad". The song, which is Trillville and Cutty's most commercially successful single, was certified Platinum by the RIAA, for selling over 1 million copies in the United States of America on June 14, 2006
Document 12: Keyshia Cole: Keyshia Cole (born October 15, 1981) is an American singer/songwriter, record producer, business woman, and television personality. She was born in Oakland, California. Her career began when she met MC Hammer at the age of 12, and later met rapper Tupac Shakur. At the age of 18, she moved to Los Angeles and was later introduced to A&M Records. She released her debut album, "The Way It Is" (2005), which spawned five singles: "Never," "I Changed My Mind," "(I Just Want It) To Be Over," "I Should Have Cheated," and "Love." It was certified gold within 17 weeks, and then platinum just eight weeks later. The album stayed on the charts for over a year, selling over 1.6 million copies.
Document 13: Alicia Keys: Alicia Augello Cook (born January 25, 1981), known professionally as Alicia Keys, is an American singer, songwriter, record producer, pianist and actress. Keys released her debut album with J Records, having had previous record deals first with Columbia and then Arista Records. Keys' debut album, "Songs in A Minor" was released in 2001, producing her first "Billboard" Hot 100 number-one single "Fallin'", and selling over 12 million copies worldwide. The album earned Keys five Grammy Awards in 2002. Her sophomore album, "The Diary of Alicia Keys", was released in 2003, spawning successful singles "You Don't Know My Name", "If I Ain't Got You" and "Diary", and selling 8 million copies worldwide. The duet song "My Boo" with Usher scored her a second number-one single in 2004. The album garnered her an additional four Grammy Awards in 2005. Later that year, she released her first live album, "Unplugged", becoming the first woman to have an "MTV Unplugged" album debut at number one.
Document 14: Aaliyah discography: American singer Aaliyah has released three studio albums, two compilation albums, and 26 singles. She was born in Brooklyn, New York, and was raised in Detroit, Michigan. At age 10, she appeared on "Star Search" and performed in concert alongside Gladys Knight. At age 12, Aaliyah was signed to Jive Records and Blackground Records by her uncle, Barry Hankerson. He introduced her to R. Kelly, who became her mentor, as well as lead songwriter and producer of her debut album. "Age Ain't Nothing but a Number" sold three million copies in the United States and was certified double Platinum by the Recording Industry Association of America (RIAA). After facing allegations of an illegal marriage with Kelly, Aaliyah ended her contract with Jive and signed to Atlantic Records. During her short career, Aaliyah earned 13 top 40 singles in the U.S. as well as 18 top 40 singles in the UK.
Document 15: Kelis: Kelis Rogers ( ; born August 21, 1979), better known mononymously as Kelis, is an American singer, songwriter and chef. Kelis achieved moderate international success with her 1999 debut album, "Kaleidoscope", but left her label Virgin Records after its follow-up, "Wanderland" (2001), received little sales attention and no U.S. release. Her third album, 2003's "Tasty", earned the singer commercial prominence and produced the hit single "Milkshake", her most well-known song. "Kelis Was Here" (2006), her fourth album, was the subject of further label disputes and she took a hiatus from music after its release, during which she trained at Le Cordon Bleu culinary school. She released the album "Flesh Tone" in 2010 and her sixth, "Food", under Ninja Tune Records in 2014.
ground_truth: Keyshia Cole