Anna Graceman Connie Talbot Raign Chris Wallace Conrad Sewell Ella Henderson Lucy Hale Rainie Yang Jess Glynne Jillette Johnson Terre Thaemlitz Tilian Pearson Paper Aeroplanes Twisted Jukebox Phildel Brooke Hyland Virgoun Vitesse Brandie Carlile Jayme Dee Aurix Andrew Allen Hana Pestle Aerocity Katie Armiger Claire Guerreso Andrew Ripp Alyssa Bernal The Overtones Alana Grace Emily Osment Hazel English Steve Moakler Ella Eyre Kris Orlowski Khia Banners Malaa Five For Fighting Disney America Ke$Ha Little Mix Ingrid Michaelson Epica Within Temptation Ellie Goulding Imagine Dragons D12