Celebrity Scramble -- Guess The Birthday Star!

It takes a REAL MAN to show his dirty feet to the whole world, but can you guess who he is based on this altered pic?!

All jokes aside, he's an iconic American record producer -- notoriously producing tunes for Justin Bieber, Rihanna and Britney Spears -- and he's married to an icon as well!

Can't keep your "hands to yourself?!" Neither can he!