Glee's doing the "Time Warp", and you definitely want to see it. Super choreography (of course) and super vocals (of course, of course). Not sure why people are complaining/commenting on possible lack of auto-tune for Cory Monteith (Finn) though, I just love his raw voice. And who else is happy about Heather Morris (Brittany) getting cast as a regular?
Check out another sneak peek for the Halloween episode of Glee, "The Rocky Horror Glee Show" (featuring the musical number, "Time Warp"!):