Direct from source: www.rollingstone.com S o is this swearing or no swearing?" In a darkened soundstage on the outskirts of London, Abel Tesfaye is wondering if he can say "fuck" or not. Tesfaye, better known as breakout pop sensation the Weeknd, is at a rehearsal for Later . . . With Jools Holland , the BBC music show, about to soundcheck his smash hit "The Hills," a four-minute horror-movie booty call featuring more than a dozen f-bombs. For Tesfaye, that's relatively clean, but he knows the pensioners in Twickenham might disagree. So when the verdict comes back "no swearing," he nods and smoothly pivots to a censored version a small gesture that says a lot about the kind of professional he has become. "The Hills" is currently enjoying its fourth straight week at Number One, a feat made even more impressive because it took the place of another Weeknd track, "Can't Feel My Face" — Spotify's official song of the