Muppet Babies Season 7 Episode 3 Sing a Song of Superheroes ( Air Date 1990-09-29 ) Genre Animation, Kids category. Overview "The babies put on their own ""superhero opera"" while Nanny tries to watch the ""Phantom of the Opera""".
Muppet Babies Season 7 Episode 3 Sing a Song of Superheroes
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- Watch: Muppet Babies Season 7 Episode 3 Sing a Song of Superheroes on CWR-CRB
- Stars: Frank Welker, Laurie O'Brien, Russi Taylor, Greg Berg, Dave Coulier, Katie Leigh, Barbara Billingsley
- Director: Lee Gunther, Robert Shellhorn, John Ahern, Jim Henson, Bob Richardson
