Meghan Trainor Mary Lambert G.R.L. Charlie Puth Sara Jackson-Holman Lucy Hale Charlotte Oc Melanie Martinez Hailee Steinfeld Sabrina Carpenter Iggy Azalea Alessia Cara Y'Akoto Sofia Carson Sarah Simmons Sabrina Chap Clean Bandit Cher Lloyd Nina Nesbitt David Lambert Bebe Rexha Kate Martin Echosmith Ed Sheeran Mika John Legend Marina And The Diamonds Omi Carly Rae Jepson Kat Graham Bella Ferraro Jason French Ariana Jennifer Lopez Jesse Kinch Jlo Brooke Hyland Laura Marano Andy Gramm Ricky Dillon Cia Lorde Shannon Saunders Uptown Funk Jennette Mccurdy Minus Six Let It Go Elvis Presley Jojo Siwa