Introducing Abby Cadabby! The newest Muppet on Sesame Street joins Elmo, Zoe, Rosita and all of her furry and feathered friends in asking, ‘What do you want to be when you grow up?’ as they prepare for a pageant on Sesame Street. Get ready to sing cowboy songs, ride the rails and more with Sesame Street Live "When Elmo Grows Up." Get Tickets.