It's a Tonight Show segment that's become a viral hit over the past several months and now it's becoming its own star-studded series.

Lip Sync Battle which, if you have never seen it, involves famous people... battling via lip sync. The fun of it isn't the premise, necessarily, but just how into it some celebrities get, which you'll see in this trailer:

A couple of things I learned from this video: John Legend makes a pretty phenomenal MC Hammer and, if the comments are any indication, fans of this segment love to abuse the word "epic" until it begs for mercy.

"Lip Sync Battle" premieres Thursday, April 2, on Spike TV.