He's provided the heartbeat for one of progressive rock's most popular bands for four decades now -- can you tell who he is from this yearbook photo?

If you're game for playing this game tonight, we'll give you two clues. First off, he's co-written two of this famous band's most popular songs. Second, for over two decades he's been doing double-duty by also acting as the band's manager. Think you know who we're talking about? Find out here!