Bill Withers

William Harrison "Bill" Withers, Jr. (born July 4, 1938) is an American singer-songwriter and musician who performed and recorded from 1970 until 1985. He recorded a number of hits such as "Lean on Me", "Ain't No Sunshine", "Use Me", "Just the Two of Us", "Lovely Day", and "Grandma's Hands". His life was the subject of the 2009 documentary film Still Bill.

source: Wikipedia