The game shows guessing game returned, offering themed episodes and its usual assortment of mystery guests.
The Gnome turned out to be 97-year-oldDick Van Dyke.
The judges guessed the masked singer might be Dustin Hoffman, Robert DeNiro, or Mel Brooks.
But once Van Dyke was unmasked, the judges were beside themselves, with Nicole Scherzinger breaking into tears.
Judges guesses ranged from Ann Wilson of Heart to Joan Jett.
The Medusa beat the Mustang in the sing-off, so it was time for the Mustang to gallop away.
She was revealed as country star Sara Evans.
Watch the Dick Van Dyke reveal below.
