Singer, songwriter and pianist Neil Sedaka enjoyed two distinct periods of commercial success: first as a teen pop star in the late '50's and early '60's, and then as a singer of more mature pop/rock in the '70's.

In both phases, Sedaka, a classically trained pianist, composed the music for his hits - which he sang in a boyish tenor voice.

But he also served as a songwriter for other artists, resulting in a string of hits year in and year out, whether recorded by him or someone else.