Tiësto moves effortlessly between the clubs and the mainstream pop charts with the help of a surprising guest list of collaborators, ranging from rappers and pop divas to fellow DJ elite like Hardwell and Martin Garrix. Diplo steps in on "C'mon"—where thrilling trance breakdowns meet driving electro-house heat—and indie darlings Tegan & Sara find the dance floor's sweet spot on "Feel It In My Bones."