Tried everything,it seems impossible to find.

Hi.
I've heard this song one time and I've been trying to find it for months.
the problem is I can't hardly remember anything from the lyrics.
all I can remember is it was slow old or classic rock I thought it was Elvis Presley but not sure.
I can remember just few words from the lyrics :
you know sunshine ........
anytime.....

and at the end he says :

and I know and I know ...............



kinda impossible but who knows maybe someone will know.

Bill Withers- Ain't no sunshine !?

http://www.youtube.com/watch?v=hlAgwd5JGPo