Frankie Lymons http://www.youtube.com/watch?v=08ZiVLWs65o&feature=player_embedded#
If you like romantic soulfull slowjam etc you may investigate some of my favorites.
Usher, Brian Mcknight, Gerald Levert, Maxwell, Keith Sweat and Montell Jordan. Many of their songs also contain excellent bass and very good percussion and rhythm lines. All are great singers in their field. Please no flames I did not say they were Sinatra or Cole, but very respectable in their genre.
If you like 70-80's remember Eric Carmen, Richard Marx, Harry Nilsson, Otis Redding, Paul Anka and Robert Guillet (sp)??