Singers:

Alan Alda (2)
Harry Belafonte
Mel Brooks (2)
Jack Cassidy (15)
Dick Cavett (2)
Carol Channing (12)
Rosey Grier
Shirley Jones (7)
Robert Morse (8)
Diana Ross (4)
Diana Sands
Tom Smothers
Marlo Thomas (2)
Billy De Wolfe (4)