Now, this dude doesn't say a single word, just lots of la-la-las and da-da-das. But it's painfully obvious that he's lip syncing... to a song with no words... and I doubt he's even the original singer, because the way he moves his mouth is not even close to what the singer is saying. So they must have just found some guy who they thought people would watch for 2 and a half minutes sing basically nothing. It's hilarious, though, trust me.