Demi Lovato’s real life best friend, Selena is set to debut on Demi’s Disney show, “Sonny with a Chance.” Wondering what the episode will be about? Well we can give you a sneak peek! Chad decides to film a documentary of himself and hires Selena to play Sonny. June 7th is the air date. Make sure to tune in to see how it all unfolds on Disney Channel.