Keenan Cahill is You Tube sensation because of his videos lip-syncing popular songs and sometimes doing it with popular stars! Like this one, he's doing it with the cast of Glee. Dianna Agron, Jenna Ushkowitz, Harry Shum Jr. and the Über hot Darren Criss! They performed Katy Perry's Last Friday Night (TGIF). It's much better if Keenan knows the lyrics,hehe. By the way it's fun to watch. Oh guys,you can vote on the poll question if you ♥ Darren Criss and Harry Shum Jr.!
video upload credits to Keenan Cahill.
