VIDEO: Kristin Chenoweth & More on GLEE's 100th Episode; Watch All the Performances

On last night's 100th episode of GLEE, current and past members of New Directions reunite for one final assignment - to reinvent their favorite performances. But these new versions of the series' most iconic tracks should not be seen as goodbye to Glee club. On the contrary, they are celebrations of what the club has meant to each and every member.

Below, check out all the performances from last night's episode including:

Mr. Schue and April Rhodes (guest star Kristin Chenoweth) toast the New Directions with Pink's "Raise Your Glass."

The Unholy Trinity busts out their Cheerios uniforms and reunites for a scorching performance of "Toxic" by Britney Spears.

Rachel, Kurt and Mercedes breathe new life into "Defying Gravity" from Wicked.

Brittana is back with Amy Winehouse & Mark Ronson's "Valerie."

Puck moves everyone into the auditorium and sings Avril Lavigne's "Keep Holding On," a performance that will always have a special place in Quinn's heart.

Mr. Schue, Holly Holiday (guest star Gwyneth Paltrow), and April Rhodes (guest star Kristin Chenoweth) join current and past members of New Directions in singing Pharrell's hit "Happy."

Cast includes Matthew Morrison as Will Schuester; Lea Michele as Rachel Berry; Chris Colfer as Kurt Hummel; Kevin McHale as Artie Abrams; Jenna Ushkowitz as Tina; Naya Rivera as Santana Lopez; Darren Criss as Blaine Anderson; Chord Overstreet as Sam Evans; Jacob Artist as Jake Puckerman; Melissa Benoist as Marley Rose; Becca Tobin as Kitty Wilde; Alex Newell as Wade "Unique" Adams; Blake Jenner as Ryder Lynn; and Lauren Potter as Becky Jackson.

Guest cast includes Amber Riley as Mercedes Jones; Dianna Agron as Quinn Fabray; Mark Salling as Noah "Puck" Puckerman; Heather Morris as Brittany S. Pierce; Harry Shum Jr. as Mike Chang; Kristin Chenoweth as April Rhodes; Gwyneth Paltrow as Holly Holliday; Chace Crawford as Biff McIntosh.

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