Janel Parrish, Diggy Simmons, Kat Graham, Perez Hilton, Nikki Reed, Paul McDonald, Colby ODonis, Novena Carmel with Ricky Reed, Ariana Grande (+), Rob Estes, Colto Haynes, Big Sean, Roshon Fegan with Roy Fegan, The Wanted, Nathan Sykes, Max George, Jay McGuiness, Siva Kaneswaran, Tom Parker, Noah Beresin with Chidera Anamege, Kylie Jenner with Kendall Jenner, Deena Nicole Cortese (+), Carly Rae Jepsen, Ronnie Ortiz Magro, J Cole, KNaan, Maria Menounos (+), Derek Hough, Neon Hitch (+), Gym Class Heroes, Disashi Lumumba Kasongo, Matt McGinley, Eric Roberts (the musician), Travie McCoy (+), Chelsie Hightower, B O B, Sophia Grace Brownlee with Rosie McClelland, Justin Bieber, Mauricio Umansky with daughters (+), Kyle Richards (+) with daughter Portia, Taylor Armstrong (+), Sophia Black, Cierra Ramirez, Kathy Griffin, Kendall Schmidt with Logan Henderson, DJ Pauly D, Colton Dixon, Karina Smirnoff, Wiz Khalifa, Vali, Mark Ballas (brief),
