Credit: Adam Rose/FOX ©2011 Fox Broadcasting Co.

So much glitter, so little time! Glee took a trip back to the 70s for Season 3, Episode 16: “Saturday Night Glee-ver,” and we've got the disco lights and high falsetto voices to prove it. Take a look back at some of the best performances from the night's episode... including one very Unique performance by Glee Project winner Alex Newell (Wade)! 

Credit: Perez Hilton Photo: Watch! Spoiler Clip of Blaine, Brittany, and Mike’s "You Should Be Dancing" in Glee Season 3, Episode 16: "Saturday Night Glee-ver" (VIDEO)
Credit: Perez Hilton Photo: Watch! Full Performance of Mercedes, Brittany and Santana Singing "Disco Inferno" in Glee Season 3, Episode 16: "Saturday Night Glee-ver" Burn, Baby, Burn! (VIDEO)
Credit: Glee on Fox on YouTube Photo: Watch! Alex Newell's Wade (as Unique) Sings "Boogie Shoes" in Glee Season 3, Episode 16: "Saturday Night Glee-ver" (VIDEO)
Credit: Perez Hilton Photo: Watch! Cory Monteith's Finn Sings The Bee Gees’ “More Than A Woman” in Glee Season 3, Episode 16: "Saturday Night Glee-ver" (VIDEO)
Credit: Perez Hilton Photo: Watch! Santana, Mercedes, Finn and The New Directions Sing "Stayin' Alive" in Glee Season 3, Episode 16: "Saturday Night Glee-ver" (VIDEO)