A prime time Sesame Street 50th anniversary Special that will air in November on HBO and PBS went into production last week and Elvis Costello was one of the celebrities who visited the set.

According to Muppet.Fandom.com, other celebrities expected to be on the show include Norah Jones, Sterling K. Brown, Joseph Gordon-Levitt, Itzhak Perlman, Whoopi Goldberg, Patti LaBelle and Meghan Trainor.