I Know (Luther Vandross song)

"I Know"
Single by Luther Vandross
from the album I Know
Released	1998
Recorded	1997
Genre	R&B soul
Length	3:58
Label	Virgin
Songwriter(s)	Luther Vandross Reed Vertelney
Producer(s)	Luther Vandross
Luther Vandross singles chronology
"Nights in Harlem" (1998) "I Know" (1998) "Take You Out" (2001)

"I Know" is a 1998 song by American recording R&B/soul artist Luther Vandross. The single was released in support of his album of the same name. The single reached its lowest peak at number sixty-one on the Billboard's Hot R&B Singles. The song also features singer Stevie Wonder on harmonica.