Credit: Adam Rose/FOX ©2012 Fox Broadcasting Co. Photo: Mercedes in Glee Season 4, Episode 21: "Wonder-ful"

Glee manages to pack an insane number of songs into each episode, which means there will always be a few standouts, along with the inevitable dud or two. We've narrowed the performances from Season 4, Episode 21: “Wonder-ful,” down to the very best and the coulda-done-without. Do you agree with our picks?

 

Best Performance of the Night: “Superstition” by Mercedes, Marley, and Blaine

Credit: Glee on Fox on YouTube Photo: Watch: "Superstition" By Blaine, Mercedes and Marley in Glee 4x21: "Wonder-ful"

Mercedes (Amber Riley) shows us all what we’ve been missing without her on the show much this season as she delivers a knockout vocal performance here. Plus, Marley (Melissa Benoist)kills on those high notes, and Blaine (Darren Criss) has never sounded smoother. And yes, we could pretty much spend all day just watching Blaine flex during his “going strong” lyric. Don’t judge.

Worst Performance of the Night: “Uptight (Everything’s Alright)” by Cassie

Credit: Glee on Fox on YouTube Photo: Watch: Kate Hudson's Stevie Wonder "Uptight (Everything's Alright)" in Glee 4x21: "Wonder-ful"

We’re still not sure we buy the fact that Cassie (Kate Hudson) and Rachel (Lea Michele) are suddenly best pals, but it was cute to see them making nice. Sadly, Cassie’s intentions were better than her execution here, as her voice doesn’t have quite enough range for this song. To put it another way, this song just wasn’t out of sight.