Little Ozzy, a diminutive Ozzy Osbourne impersonator, performed a version of the rocker's hit ballad "Mama, I'm Coming Home" on last night's episode of America's Got Talent. The real Ozzy's wife, Sharon Osbourne, is a judge on the show and was clearly amused by the miniature version of her husband. "I have to tell you something, my husband is away from me right now, and it made me miss him even more by you singing me that song, so I really thank you," she said before declining to let him through to the next round.