ABC is celebrating Sesame Street with the star-studded documentary special "Sesame Street: 50 Years of Sunny Days.” Angelina Jolie, Whoopi Goldberg, Questlove, Lucy Liu, Olivia Holt, Tori Kelly, Jason Aldean, Karla Souza, Olivia Munn, Gloria Estefan and Christopher Jackson share what they love about the timeless show.