First, Taylor Swift told us that she and her ex were never ever getting back together, and now she might be telling us why: the singer just debuted a 30-second preview for her new single, "I Knew You Were Trouble." The clip above—which Swift teased on her Twitter by sharing that it's one of her "favs" from her forthcoming album Red—sounds a little bit different from what we're used to hearing from the pop-country singer. It includes a heavy dance beat and even some dubstep sounds, with Swift's lofty vocals on top, insisting "shame on me" because she "knew you were trouble when you walked in." Listen to the preview above!
Plus, see all of Taylor's Red looks.