Rising Swedish pop star Tove Lo (pronounced “TOO-veh loo”) stepped into the spotlight last year with her unflinching breakup-aftermath anthem, “Habits.” The hook, “You’re gone and I gotta stay high all the time, to keep you off my mind,” ought to give a vague idea as to what “habits” she’s referring to. The follow-up single? As if to placate parents: "Not on Drugs." Both are rather fabulous slices of pop. BROODS opens the show.