He appeared with Miss Piggy and other Muppets as part of the Give a Day. Get a Disney Day. promotion. During the duration of the commercial (with "Bella Notte" from Lady and the Tramp in the background), the pair are seen enjoying ice cream, role playing Cinderella and Prince Charming, and ultimately volunteering their time building a house.
In Sesame Street season 41, Diggs appears with his wife Idina Menzel, a chicken, a shrimp and a dog to present the word "allergic." He also appears in a season 45 episode, performing "Let's Go Driving" with Elmo.