"Number One" is the first single featuring Keri Hilson from American R&B singer R. Kelly's 2009 album, Untitled. The song was released digitally on July 28, 2009.
"Number One" is the first single featuring Keri Hilson from American R&B singer R. Kelly's 2009 album, Untitled. The song was released digitally on July 28, 2009. (en)