Keri Lynn Hilson 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 in 2007 after appearing on Timbaland's single "The Way I Are", which topped charts around the world.

Hilson's music style is R&B, hip hop, and pop; womanhood, sexual intimacy and love are the typical themes. Her musical influences come from her father's side of the family. Hilson's debut studio album, In a Perfect World..., was released in 2009, and debuted at number four on the US Billboard 200 chart, eventually being certified gold by the Recording Industry Association of America (RIAA). The album spawned the hit singles, "Knock You Down", "Turnin Me On" and "I Like". It also earned Hilson two Grammy Award nominations for Best New Artist and Best Rap/Sung Collaboration for "Knock You Down". Her second studio album, No Boys Allowed, was released in 2010 and was considerably less successful than its predecessor; however, it included the platinum single, "Pretty Girl Rock". In 2016 Hilson announced that her upcoming third studio album would be titled L.I.A.R. The album has yet to be released, and for the past eight years Hilson has not released any new music of her own.

Hilson spent most of her teenage years working with producer Anthony Dent as a songwriter and background vocalist for the likes of Usher, Ludacris, Kelly Rowland, Toni Braxton, Ciara and Polow da Don. After graduating from Tucker High School in the DeKalb County School District, Hilson attended Oxford College of Emory University and Emory University in Atlanta for three years and studied a course in theater. She continued working as a songwriter and background vocalist during her schooling years. Hilson eventually stopped working with Dent, and began working more with Polow da Don. She also became a member of the songwriting and production team, The Clutch. Together, they wrote Mary J. Blige's "Take Me as I Am" (2006), Omarion's "Ice Box" (2006), Ciara's "Like a Boy" (2006), The Pussycat Dolls' "Wait a Minute" (2006) and Britney Spears' "Gimme More" (2007). In 2006, Polow introduced Hilson to American rapper and producer Timbaland, who then signed her to his record label, Mosley Music Group. In November 2006, Hilson was featured on American rapper Lloyd Banks' single, "Help", for his album Rotten Apple (2006).

The following year, Hilson was featured on three singles; in June, on Timbaland's song "The Way I Are", the second single from his album Shock Value (2007); on Rich Boy's "Good Things" with Polow da Don; and thereafter, in December, on Timbaland's song "Scream" with Nicole Scherzinger, the fifth single from Shock Value. Out of the three singles, "The Way I Are" achieved the most success, topping nine charts around the world.

In 2008, Hilson appeared in the music videos for Usher's single, "Love in This Club", and Ne-Yo's single, "Miss Independent". Her debut studio album, In a Perfect World..., was released on March 24, 2009. The album contained pop-oriented R&B songs. It was initially planned to be released the previous year; however, the album was delayed several times because Hilson wanted to make sure it came out to her liking, stating "I'm just a perfectionist. I have had many [release dates], but it's all for a good cause. The label wants to make sure the album has its proper release, and I'm thankful for that. Very grateful, even though fans look at it like it's a bad thing." In the United States, In a Perfect World... debuted at number four on the Billboard 200 chart, and number one on the Top R&B/Hip-Hop Albums chart, with first-week sales of 94,000 copies. By October 2009, the album was certified gold by the Recording Industry Association of America (RIAA). Its first single, "Energy", released in May 2008, peaked at number 78 on the US Billboard Hot 100 chart and number 21 on the US Hot R&B/Hip-Hop Songs chart. It reached the top fifty in the United Kingdom, and peaked the highest in New Zealand at number seven, and was certified gold in that country. Hilson also featured on three singles in 2008; in June, on rapper Nas' song "Hero"; in September, on Kardinal Offishall's "Numba 1 (Tide Is High)"; and thereafter, in October, on Chris Brown's song "Superhuman".

"Return the Favor", featuring Timbaland, served as the second international single from Hilson's In a Perfect World... album, while "Turnin Me On" featuring Lil Wayne, was released as the second US single. The latter achieved commercial success, reaching number 15 on the Billboard Hot 100, and number two on the Hot R&B/Hip-Hop Songs chart, eventually being certified platinum in the United States. "Turnin Me On" spent 10 weeks on the Hot 100. Hilson and Lil Wayne performed the song on Jimmy Kimmel Live! on March 27, 2009. The next single, "Knock You Down" featuring Kanye West and Ne-Yo, achieved more success, reaching number three on the Billboard Hot 100 and number one on the Hot R&B/Hip-Hop Songs chart, eventually being certified two times platinum. The song spent 31 weeks on the Hot 100 and 30 weeks on the Hot R&B/Hip-Hop Songs chart. It also reached the top ten in Canada, Ireland, The Netherlands, New Zealand and the United Kingdom. Hilson and West performed "Knock You Down" on the Late Show with David Letterman on May 4, 2009. "Make Love", "Slow Dance", and "Change Me" featuring Akon, were released as the album's fourth, fifth and sixth US singles, respectively. Hilson performed "Slow Dance" with The Roots on Late Night with Jimmy Fallon on September 18, 2009.

Hilson, along with Gym Class Heroes, Gorilla Zoe and T-Pain, were supporting acts on Lil Wayne's I Am Music Tour in North America. At the 2009 BET Awards, she was nominated in four categories, including Best New Artist, Best Female R&B Artist, as well as Viewer's Choice and Best Collaboration for "Turnin Me On" with Lil Wayne. She eventually won the Best New Artist category. In 2009, Hilson was featured on five singles; "Number One" with R. Kelly, "She Don't Wanna" with Asher Roth, "Everything, Everyday, Everywhere" with Fabolous, "Medicine" with Plies, and on the remix of Sean Paul's song, "Hold My Hand". Hilson was nominated for Breakthrough Artist and Favorite Soul/R&B Female Artist at the 2009 American Music Awards, but lost to Beyoncé Knowles. The re-released edition of In a Perfect World..., in January 2010, included the single "I Like", which reached number one in Germany, Poland and Slovakia, and peaked within the top ten in Austria, Norway and Switzerland. At the 52nd Grammy Awards, Hilson was nominated for Best New Artist and Best Rap/Sung Collaboration for "Knock You Down" with Kanye West and Ne-Yo.

During the first half of 2010, Hilson guest featured on rapper Trina's single, "Million Dollar Girl", and on T.I.'s single, "Got Your Back". In April 2010, it was made known that she had replaced Jennifer Hudson as the new face of the cosmetics and personal care products company, Avon. "Breaking Point" was released as the first single from Hilson's second studio album, No Boys Allowed, in September 2010; it only appeared on the US Hot R&B/Hip-Hop Songs Chart at number 44, and spent two weeks on the chart. On December 2, 2010, Hilson was among one of the many female artists who performed at the VH1 Divas Salute the Troops concert, where she sang "Turnin Me On", "Knock You Down", "Pretty Girl Rock", and a duet with American country music duo, Sugarland, on the Aretha Franklin song, "Think". No Boys Allowed was released on December 21, 2010. Described as a "girl power album", No Boys Allowed was primarily of the R&B and pop genres. Despite the album's title, Hilson stated "it's not about excluding men. It's more about women understanding that there comes a time in your life when you want a man. A real man. A grown up. Not a boy. And that's not a bad thing." Speaking of the songs on the album, she explained "I write from a female perspective, but I'm also telling men what women are really thinking and feeling about them". In the United States, No Boys Allowed debuted at number 11 on the Billboard 200, and number seven on the Top R&B/Hip-Hop Albums chart, with first-week sales of 102,000 copies. Although the album sold 8,000 copies more than Hilson's debut album In a Perfect World..., it failed to match that album's debut chart position of number four on the Billboard 200, due to No Boys Allowed being released during the festive season with several Christmas albums debuting inside the top-ten. As of February 2011, the album has sold 205,500 copies in the United States.

Hilson achieved success with the album's second single, "Pretty Girl Rock", which reached number 24 on the Billboard Hot 100 and number four on the Hot R&B/Hip-Hop Songs Chart, eventually being certified platinum. The song spent 14 weeks on the Hot 100 and four weeks on the Hot R&B/Hip-Hop Songs Chart. It reached the top twenty in Germany and New Zealand, and top thirty in Austria and Slovakia. Hilson promoted "Pretty Girl Rock" with live performances on televised shows, including The Tonight Show with Jay Leno, the Late Show with David Letterman and Jimmy Kimmel Live!  "One Night Stand" featuring Chris Brown, and "Lose Control (Let Me Down)" featuring Nelly, were released as the album's third and fourth singles, respectively. In 2011, she was featured on British rapper Chipmunk's single "In the Air", for his album Transition (2011). In April 2011, Hilson, along with many other R&B and hip hop acts, traveled to Australia to be part of its biggest urban music festival, Supafest. At the 2011 BET Awards, Hilson was nominated for Best Female R&B Artist and Video of the Year for "Pretty Girl Rock". In July 2011, she was a supporting act on the second leg of Lil Wayne's I Am Still Music Tour in North America, before embarking on her first headlining European tour in October. Hilson made her acting debut in the romantic comedy film, Think Like a Man, released on April 20, 2012. She also appeared alongside Vin Diesel in the sci-fi action film, Riddick (2013), in a brief role as a prisoner allowed to escape to make room for Riddick.

In January 2010, she teamed up with Akon on the charity single, "Oh Africa". All proceeds of the single benefited underprivileged African youth. The following month, Hilson joined the extended list of artists during the recording session of the single, "We Are the World 25 for Haiti", to benefit victims of the 2010 Haiti earthquake. On May 25, 2010, she performed at the Virginia Stand Up! A Call to Action benefit concert, organized by Chris Brown to help with continued relief efforts in Haiti. On October 21, 2010, Hilson attended Collins Academy High School in Chicago as part of the Get Schooled National Challenge and Tour, a "program aimed at increasing high school and college graduation rates and promoting the importance of education". A year later, she received a Get Schooled Award for her involvement with the program. In 2011, Hilson contributed in the fight against AIDS by posing in retail-clothing company H&M's celebrity-driven collection for Fashion Against AIDS. 25% of all sales from the collection were donated to the Designers Against Aids charity. Hilson contributed to the It Gets Better Project, a project which aims to prevent suicide among LGBT youth.

In June 2011, Hilson became an ambassador for MTV Staying Alive, a foundation which raises awareness and prevention of HIV and AIDS. In September 2011, she lent her support to US First Lady Michelle Obama's Let's Move! campaign, which aims to combat childhood obesity. She made T-shirts for the campaign that read "Pretty Girls Sweat", and exercised with the young women at The Educational Alliance's Sirovich Senior Center in New York City on September 24. During Hilson's visit in Africa in November 2011, she stopped by an orphanage to visit her young fans who had lost their families during the 2010–2011 Ivorian crisis. She gave each orphan a "care" package, which consisted of bookbags, T-shirts, sunglasses, notebooks and an electric keyboard. In April 2012, Hilson worked with DoSomething.org to encourage young people to take part in the nationwide Epic Book Drive by bringing books to local people in need, In a press release, she stated: "Joining DoSomething.org's newest effort to provide for people in need with Epic Book Drive was the easiest decision ever!. I truly believe providing access to those who want to learn is the key to bettering lives around the country. And helping kids find healthy outlets, such as books, has always been a passion of mine. So my involvement here is a natural fit."

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