'The Tonight Show Starring Jimmy Fallon': Random lip sync challenge at Vidcon

Just as famous people have done before on "The Tonight Show Starring Jimmy Fallon," attendees at Vidcon have tried their hands -- and lips -- at the "Random Lip Sync Challenge."

Now, the late-night show has put together a super-cut of some of the best efforts from YouTube stars and random "singers" alike. There are some rather impressive efforts to tunes from Katy Perry, Nicki Minaj and more -- a couple of lip sync-ers even include a cardboard cut-out of Fallon.

Photo/Video credit: NBC