7 Season
107 Episode
Muppet Babies - Season 7 Episode 3 Sing a Song of Superheroes (1990)
The babies put on their own ""superhero opera"" while Nanny tries to watch the ""Phantom of the Opera""
- Country : United States of America
- Genre : Animation, Kids
- Studio : CBS
- Director : Jim Henson, Jeffrey Scott
- Cast : Frank Welker, Laurie O'Brien, Russi Taylor, Greg Berg, Dave Coulier, Katie Leigh