Who sang Please stay?

The Drifters - 1961 - Rudy Lewis not Ben E. King

Duffy - 2008

Lorraine Ellison - 1961

Lisa Walker Williams - recent

The Cryin' Shames - 1966

Burt Bacharach - 1961 (I believe)

As far as I know these are the only artists of any stature that recorded Please Stay

Hope this helps