“It’s a variation on a character group that dated back to the early ’70s called Frackles. I think it was ... Goelz, who had been working with Muppets since 1974 (and had played Gonzo since ...

A Henderson musical number that didn’t seem out of place is her rendition of The Turtles’ Happy Together, accompanied by an assortment of Muppet monsters and Frackles. For what is her closing ...