Jimmy Fallon actually had this as part of the show last week and it's been gaining popularity ever since.

The video is actually being deemed as EPIC. Which, by internet standards is probably just about the best adjective out there.

Fallon had Joseph Gordon Levitt and Stephen Merchant on the show and basically challenged them to a lip sync battle. Pretty simple premise. You pick 3 songs and lip sync them to the audience.

Joseph Gordon Levitt basically STOMPED on the competition. He was brilliant!