Read on to find out what charity event was the lucky recipient of their talents, plus what Matthew teased to us about an upcoming secret scene from Fox's hit musical series...
In an event at Los Angeles' El Rey theater, celebs Michele, Morrison, Julian McMahon, Danny Devito, Jack Nicholson, Nicole Scherzinger, Tim Curry, Evan Rachel Wood and more joined forces to perform highlights from Rocky Horror and raise money for the Painted Turtle camps for kids with serious illnesses.
Lea reprised her "Rocky Horror Glee Show" role of Janet, while Matthew stepped in to play Brad, and together they performed, "Dammit, Janet!"
As for those set secrets, we chatted up Morrison before the show and asked about paparazzi shots of the cast filming scenes at a chapel in the San Fernando Valley. Could someone be getting married? Said Morrison, "There might be a wedding, there might be a funeral."
Aaah! No deaths allowed!
Press play above to see Matt Morrison on the red carpet, and then tell us in the comments which of the Glee castmembers is your favorite Broadway renegade! Is it Morrison, Michele or someone else?