America's catchiest jingle du jour is Carly Rae Jepsen's "Call Me Maybe": The YouTube video alone has been seen by more than 63 million people.
It’s also spawned countless online parodies. But the best came from two college sports teams, who have found viral video fame by performing choreographed dances to the tune in the back of vans.
The men of Harvard baseball and the women’s crew team of Southern Methodist University came together to compete, live, in a plaza dance-off.
Even the TODAY family got into the act. Al, Natalie, Savannah and Tamron tried to coordinate the arm moves, then Kathie Lee and Hoda kicked it up a notch.
Who nailed it? You decide.