They've got the beat, Gleeks.

With the season three premiere of Glee set to air tomorrow night - read major spoilers related to the episode NOW - we've posted a sneak peek at one of the installment's four musical numbers below. It's set in the cafeteria and it's a cover of a classic by The Go-Go's.

Enjoy now and, of course, visit TV Fanatic soon after the premiere airs for a full review, complete with song choices and the latest Glee quotes.