Guest Stars Ellie Goulding as Herself Dizzee Rascal as Himself Nicole Scherzinger as Herself Robbie Williams as Himself Barry Manilow as Himself The Lumineers as Themselves Little Mix as Themselves Rizzle Kicks as Themselves Tom Odell as Himself The Wanted as Themselves Bastille as Themselves Kings of Leon as Themselves Passenger as Themselves
