Credit: Justin Lubin/FOX © 2010 Fox Broadcasting Co. Photo: Kurt and Blaine Have a Heart-to-Heart in Season 2, Episode 9:
Glee manages to pack an insane number of songs into each episode, which means that there will always be a few standouts along with the inevitable dud or two. We've narrowed the performances down to the very best and the not so great from Episode 2.9. After all, not every Glee cover can wind up as a bestseller on iTunes!

Best Performance of the Night: “Dog Days Are Over” by Tina and Mercedes

We loved seeing Kurt and Rachel’s dual performance of “Don’t Cry for Me Argentina,” which finally signified a less frosty relationship between these two. (Took long enough!) But “Dog Days” was a perfectly triumphant end to a very turbulent episode. And who knew that Tina and Mercedes would make for such a dynamic twosome? In fact, it’s been a while since Tina’s really gotten a chance to showcase her pipes, which only left us wanting more. (Of course, Finn and Rachel’s break-up, along with Will’s loneliness, make us doubt whether the dog days really are over for the gang, but we won’t be the ones to burst their bubble!)
Credit: Justin Lubin/FOX © 2010 Fox Broadcasting Co. Photo: Sam and Quinn Sing the Intro to Sectionals Performance in Season 2, Episode 9: "Special Education"
Worst Performances of the Night: “(I’ve Had) The Time of My Life” by Sam and Quinn

Don’t hate us for this choice! This week was Sectionals, after all, so everyone brought their A-game. We certainly couldn’t put “Valerie” in this slot — considering those fabulous dance moves — and even the Hipsters were pretty amusing. But “Time of My Life” just didn’t quite have the “wow” factor. Sure, Mercedes was great at the tail-end there. But we kept waiting for Quinn to do some belting of her own, and her parts were instead a bit soft-spoken. We still love these two together (in other words, no one is saying that this song wasn’t sexy!), but the duet bar has been raised pretty high.