Producer: DJ Toomp, Wonder
Album: King

The single supported his acting debut in hometown flick ATL and also was the lead banger from his aptly titled King album, making it to No. 3 on Billboard's Hot 100 chart. Tip had been calling himself “The King” long before this song dropped.  But it was “What You Know,” which boasts gutter verses, a simple, digestible hook for radio success, and a Toomp beat that's both appealing and threatening at once, that is T.I.'s crowning achievement.