Kesha, Khloe Kardashian, Kourtney Kardashian, Kylie Jenner, Kendall Jenner, Katy Perry, Drake (rapper), Rocsi Diaz, Muse, Matt Bellamy, Christopher Wolstenholme, Dominic Howard, The Summer Set, Courtney Bingham, Stephen Amell, David Ramsey, Jep Robertson with Jessica Robertson, Steve Harvey with Marjorie Harvey, fun (band), Nate Ruess, Andrew Dost, Jack Antonoff, TLC, Chilli (singer) and T Boz, Jackson Rathbone, Kelly Rowland, Ashley Greene, Shaun White with Jared Palomar, Jason Derulo, Juicy J, Ylvis, Roger Meddows Taylor with Brian May, Lisa Kennedy Montgomery, The Wanted, Nathan Sykes, Siva Kaneswaran, Jay McGuiness, Max George, Tom Parker, Krewella, Jahan Yousaf with Yasmine Yousaf, Avril Lavigne, Matt Goss, Maria Menounos, Hanson (band), Zac Hanson, Taylor Hanson, Isaac Hanson, Kerri Kasem, Claire Holt with Charles Michael Davis, Zedd, Emily Bett Rikards, Colton Haynes, Willa Holland, Candice Accola, Kat Graham, Robbie Amell, Adelaide Kane, The Band Perry, Neil Perry, Kimberly Perry, Reid Perry, Katie Cassidy, Shay Mitchell, Lucy Hale, 30 Seconds to Mars, Jared Leto, Shannn Leto, Tomo Milicevic, Tim McGraw, Wayne Brady, Kevin Hart, Ian Somerhalder, Phoenix, Floyd Mayweather, Miguel (singer), Darren Criss, Danielle Bradbery, Joan Jett,
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Performance:
Miley Cyrus, Cher Lloyd, Avril Lavigne, Danity Kane, Aubrey ODay, Aundrea Fimbres, Shannon Bex, Dawn Richard, Dawn Angelique, The Wanted, Nathan Sykes, Siva Kaneswaran, Jay McGuiness, Max George, Tom Parker,
