The cast of "Glee" did some last minute filming for the show's Super Bowl "Thriller" number yesterday in L.A. -- where we got some killer before and after shots of the kids transforming into zombies!
Heather Morris, Lea Michele, Kevin McHale, Dianna Agron, Jenna Ushkowitz, Naya Rivera and Ashley Fink were spotted on set with their wild, undead looks.
The "Thriller" performance will be a mashup with the Yeah Yeah Yeahs' "Heads Will Roll" -- and will also include Finn (Cory Monteith) and Rachel (Lea Michele) singing Lady Antebellum's "Need You Now" and Blaine (Darren Criss) takes on Destiny's Child's "Bills, Bills, Bills."
Check out the pics above -- and a preview of the songs right here.
