"Sesame Street" has had plenty of surprising guest stars over the years, from Katy Perry doing a duet with Elmo to Tina Fey ...

One of the most sought-after lost episodes of “Sesame Street” has been unearthed by Internet archivists, as a rare encounter between Big Bird and the Wicked Witch of the West from “The Wizard of Oz” ...

Frank Oz is the performer behind (under?) some of the most popular Muppets of all-time, including Fozzie Bear, Miss Piggy, and Sam the Eagle, and on Sesame Street, Cookie Monster, Grover, and Bert.

It’s difficult to quantify just how incredible the career of Frank Oz has been. On the one hand, he’s a hugely successful film director: The Dark Crystal, Little Shop of Horrors, Dirty Rotten ...

The latest season of Sesame Street might have fans in their feelings thanks to a certain guest star. In the trailer for the children's program's 55th season, Reneé Rapp sings with the beloved Cookie ...