What You Know

"What You Know"
Single by T.I.
from the album King
Released	January 28, 2006; 11 years ago (2006-01-28)
Format	CD single Digital download
Recorded	2005; 12 years ago (2005)
Genre	Hip hop trap
Length	4:34 (album version) 4:08 (radio version)
Label	Grand Hustle Atlantic
Writer(s)	Gabriel W. Arillo Billy Roberts Clifford Harris Aldrin Davis Curtis Mayfield Donny Hathaway Leroy Hutson
Producer(s)	DJ Toomp
T.I. singles chronology
"Front Back" (2005) "What You Know" (2006) "Why You Wanna" (2006)

"What You Know" is a Grammy Award-winning hip hop song by Southern hip hop recording artist T.I., released as the lead single from his fourth studio album King (2006). The song peaked at number three in the US and was certified double platinum by the RIAA following shipment in excess of 2,000,000 copies.

The song is produced by T.I.'s frequent collaborator DJ Toomp, from Zone Boy Productions, with additional keys by Wonder Arillo. It utilizes an interpolation of Roberta Flack's version of The Impressions's "Gone Away" and of the song "Hey Joe", written by Billy Roberts but popularized by Jimi Hendrix.

The song is in E♭ minor. The melody line is G♭, B♭, E♭, B♭-D♭-B♭-A♭-G♭-E♭-A♭-G♭-E♭-D♭-D♭-E♭-B♭-D♭-A♭-B♭-G♭-A♭, E♭.

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Wikipedia