INXS stumbled greatly in the early '90s, since their slick, professional fusion of disco and the Stones was singularly out of place in the grunge era. On the heels of U2's discovery of irony and the dancefloor and Oasis' popularization of rock & roll hedonism again, INXS seemed to be better suited to the late '90s, but Elegantly Wasted, their first new studio album in four years, proves that theory wrong…