Actor Chord Overstreet points to the sky while filming a new episode for "Glee" as he and the boys re-enact a classic scene from "Grease". Chord looks to be playing the part of Danny Zuko, originally played by John Travolta, while Cory Monteith, Mark Salling, Harry Shum Jr., and Darren Criss join in on the fun. December 06, 2011.