Ethel Merman did the singing in the movie Gypsy. She was an American actress and singer who is known for her powerful voice and stage presence. Some of her most famous songs include “There’s No Business Like Show Business”, “I Get a Kick Out of You”, and “Everything’s Coming Up Roses”. She won a Tony Award for her performance in Gypsy, which is considered to be one of the greatest musicals of all time.