Glee and Kevin hit a huge milestone! It's the 100th episode!

There's so much to get to! Brittany and Quinn are back, a diva off between Mercedes and Rachel, Fondue For Two, Chace Crawford's cameo, and the return of April Rhodes (Kristin Chenoweth) and Holly Holliday (Gwyneth Paltrow)!

Kevin and Jenna are back to break down what it was like to reunite with the OG Glee Club! Plus, the emotional scene that was tough to get through, why Jenna doesn't have the fondest memories of shooting 'Raise Your Glass,' their real feelings about the songs revisited in this episode, and why Vanessa Lengies had to help Jenna get through the 100th episode party!