"Glee" Cast "Bust A Move" from next week's "Mash-Up" episode

Everyone is bustin' a move except Kurt

After some music-lite episodes, this past week brought some really beautiful performances. Next week promises more of the same, except with a lot more fun. Last week was about emotional ballads, this coming week looks to get back to energetic numbers.

We'll see Puck sing Neil Diamond's Sweet Caroline, a performance of Sisqo's Thong Song, and even get our guidance counselor Emma (Jayma Mays) showing off her vocal prowess on I Could Have Danced All Night from My Fair Lady.

But since I'm on the record as being hot for teacher, the highlight is going to be, without a doubt, Will (Matthew Morrison) rapping again. He felt the need to show the kids how it was done on Kanye's Gold Digger back in the second episode, and again, he's bustin' rhymes and break dancing circles around the kids.