Is Glee Star Naya Rivera Fired Over Lea Michele Feud?
Naya Rivera poses with the award she won for favorite TV gal pal for her role in the series "Glee" at the 2014 People's Choice Awards in Los Angeles, California January 8, 2014. REUTERS/Kevork REUTERS

"Glee" Season 5, Episode 12, "100" spoilers indicate an enjoyable yet emotional gleeks reunion. Brittana shippers have been looking forward to seeing Brittany (Heather Morris) and Santana (Naya Rivera) together in this special reunion episode. Special guest stars include Chace Crawford, who plays Biff, Quinn's (Dianna Agron) boyfriend. What songs will the original New Directions sing?

Spoiler alert: This feature contains spoilers on Glee 5x12, "100." Read at your own risk.

Glee Season 5, Episode 12 ('100') Song List

Rachel (Lea Michele), Kurt (Chris Colfer) and Mercedes (Amber Riley) will perform "Defying Gravity" in Glee's 100th episode, reports The Hollywood Reporter. The other special guest stars are performing, too.

In Glee Season 5, Episode 12, Kristin Chenoweth reprises her role as April. It is interesting to note that Lea, Chris and Mercedes filmed a "Wicked" number while the musical's original Broadway star was with them. (Here is the YouTube link to the MP3 version of the back-to-back-to-back number.)

Gwyneth Paltrow returns as Holly Holliday, who is performing Pharrell's "Happy" with April and Mr Schu (Matthew Morrison). Holly is also singing "Party All The Time."

There may be a reunion for twisted high school sweethearts in Glee 5x12. Predictably, Puck (Mark Salling) is not going to like Quinn's new beau. Crawford's Biff is quite obnoxious. It looks like Quinn will be hating Biff, too, eventually. Quite appropriately, Quinn and Puck are performing "Just Give Me A Reason" by Pink.

More songs on Glee Season 5, Episode 12: Brittany and Santana are performing "Valerie." Then Quinn is joining Brittana to cover "Toxic." (YouTube has a leaked Full Studio MP3 version here.) Feuding frenemies Rachel and Santana will sing "Be Okay." The 2-part special is likely to end with the original New Directions' cover of "Don't Stop Believin.'"

Watch Chace Crawford discuss his gleek character Biff in this YouTube video page. Watch the Glee alums preview the show here. Glee Season 5, Episodes 12 and 13 are expected to be nostalgic, mad silly, and definitely entertaining for the fans.

Glee Season 5, Episode 12 airs on Mar. 18 on FOX.

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