Obama Raps 'U Didn’t Build That' to the Tune of MC Hammer Neetzan Zimmerman · 09/17/12 03:20PM Mix master Hugh Atkin of "Will the Real Mitt Romney Please Stand Up" fame has pieced together yet another masterful mash-up, this time featuring President "MC 'Bama" rapping "U Didn't Build That" to the tune of MC Hammer's "U Can't Touch This."