Sometimes in Ibiza, you just need dance music sung by a folk warbler. That's where Ellie Goulding first cruised in, a tremulous soprano soaring above blissful synth mists and skipping club beats. It was an intriguing proposition—an indie sylph doubling as a trance-pop diva—that became a resounding success, with the British songwriter lending her breathy chirp to crucial tracks from mega-producer pals Calvin Harris and Skrillex. Goulding has also steered her sound into more unequivocally pop territory, even taking on the E.L. James-inspired power ballad “Love Me Like You Do.”