'Dancing' Stars React to Jennifer Grey's Win

"Extra" was backstage with the "Dancing with the Stars" cast after Jennifer Grey and partner Derek Hough won the mirrored ball trophy -- and they couldn't have been happier for the dancing duo.

"I knew Jennifer would win from the first day I was there," David Hasslehoff told "Extra."

"She fought against all these injuries in her body," pro dancer Louis Van Amstel added. "She deserved it. Every bit of it."

Fighting off a major injury just this past Monday, Grey revealed that she made an emergency trip to the hospital after rupturing a disc in her surgically-repaired spine. "I didn't think I was going to compete tonight... And I'm really glad I did," the "Dirty Dancing" star said.

"Extra" wants to know: Who should be on season 12 of "Dancing with the Stars?" Tell us in the comments below!