D a v i d K e e v i l: vocals, guitar, harmonica
David gives the Groove Pops song-writing, vocals, guitar playing, and virtuouso harmonica licks. And when he isn't writing, singing, playing, or wailing (or parenting or husbanding), he's a clinical psychologist. In past lives he was a sculptor, performance artist, and teacher. 
M i c h a e l M a d e r a: vocals, guitar
By day a mild-mannered business consultant with a national practice, by night Michael morphs into a song-writer, vocalist, and groove-popping lead guitarist.
J o s h S t e i n: drums
He's a drummer! He's a bio-chemist! He's (gasp!)
A Groove Pop! Josh knows cell structure and life forms: his backing beats make the music walk, run, and fly.
D o n S t r a u s s: bass
Bass-man extraordinaire, carpenter/contractor Don lays down The Groove Pops' rock-solid foundation, swinging a razor-sharp axe.