Deez Keys is a rap song featured in the episode of the same name. It is mostly sung by Rigby.
Rigby: Yo, my name is Rigby, I got pizza galore
You may have a lotta pizza, but I got much more
Had to borrow Benson's car 'cause it's a crisis
Downtown they're sellin' slices at half prices
I knew he'd say no, so I didn't say please
I snuck into his office and made off with deez keys!
Mordecai and Rigby: Deez keys, deez keys,
Made off with deez keeeeeeeeeeeeeeeeys!