T.I. is the stage name of rapper Clifford Harris, whose fourth album, King, was the best-selling rap release of 2006. Harris, whose childhood nickname is Tip, released his first full album in 2001 (I'm Serious).

T.I. then steadily built sales with his next releases, Trap Muzik (2003) and Urban Legend (2004). King launched him into the big time and earned a Grammy for best rap solo ("What You Know"). The self-proclaimed "King of Hip-Hop," Harris sticks to traditional rap themes -- illegal drugs, illicit guns and ill-treated women -- and is known as a technically skilled lyricist. Over the years he's worked with Destiny's Child Busta Rhymes, Eminem, Jaimie Foxx and Justin Timberlake (their single "My Love" won a Grammy). Like Jay-Z and Sean "Diddy" Combs, Harris has business interests beyond making hit records, including nightclubs, construction and a record label and media company, Grand Hustle.

His success in 2006 included landing a role in a new Ridley Scott movie with Denzel Washington and Russell Crowe (American Gangster) and teaming up with Chevrolet and Dale Earnhardt, Jr. for TV commercials. His hit songs include "What You Know," "U Don't Know Me" and "Big Things Poppin'" (that's the polite title).

He released his sixth album, T.I. vs T.I.P. in 2007, and in 2008 he was convicted on federal weapons charges and ordered to perform community service while awaiting sentencing.