The Mavericks held their championship parade yesterday. And Finals MVP Dirk Nowitzki had a bit of a Mark Madsen moment (as in, a moment at a championship parade that we'll probably never forget). Mark Cuban asked Dirk to sing a rendition of "We Are The Champions"—a song he's no doubt been singing over and over (and over!) again for the last four days—and he completely butchered it. Ah, well. Guess you can't be good at everything, eh? [via FOX Dallas-Fort Worth]