Creed!

See if you recognize Creed Bratton from The Office in these videos from when he was a member of The Grass Roots back in the late 60's.

Look for Creed with the Fu Manchu mustache:
The Grass Roots - Bella Linda

And in this more familiar hit song (for those of you old enough to remember), Creed is the guitarist stage right of the drummer:
The Grass Roots - Midnight Confessions