Human cast members, Gordon, Susan, Bob, Gina, Luis, Maria, Linda, Leela and Miles return as Norah Jones sings "Welcome to the Party".

Joseph takes a trip through Sesame Street history, bumping into some classic characters along the way, including Kermit the Frog (who sings "Bein' Green" with Elvis Costello).

"[2] Mark Kennedy of Associated Press wrote, "Fifty years ago, beloved entertainer Carol Burnett appeared on the very first broadcast of a quirky TV program that featured a bunch of furry puppets.

"[5] Lauren Messman of The New York Times wrote, "Now Sesame Street will take a trip down memory lane with a special anniversary celebration, hosted by Joseph Gordon-Levitt.

Over the years, musicians like Johnny Cash and Destiny's Child have stopped by to sing on Sesame Street, and the anniversary will be no different, welcoming stars like Meghan Trainor, Patti LaBelle, Elvis Costello and Nile Rodgers to join the beloved characters for special segments and songs.