Fresh off a stint as Hellcats director, Debbie Allen will be working behind the camera on Grey's Anatomy. What does the famed choreographer and writer have in store for us?

"It is a big episode," Debbie told E! Online, laughing.

"It might be the biggest episode of the season - I think it is! I love the cast. They are so much fun - Patrick Dempsey, Ellen Pompeo, Sara Ramirez, Sarah Drew, Kevin McKidd, Chandra Wilson. I had a scene today with all of them in one scene, and it was wonderful."

Why do we have a hunch this is the Grey's Anatomy musical we've heard rumors about? We're just throwing that out there, but you never know, it wouldn't be the biggest stretch.

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.