Question: who are all the celebrities on the masked singer?
Answer: T-Pain – series 1 winner. ... , Rumer Willis – series 1. ... , Gladys Knight – series 1. ... , Donny Osmond – series 1. ... , La Toya Jackson – series 1. ... , Joey Fatone – series 1. ... , Ricki Lake – series 1. ... , Wayne Brady - series 2 winner.