Artist: Taylor Swift Song: I Knew You Were Trouble (acoustic) Video 1: http://www. raymondsaumure.com?v=V_sHCYyXKDE Video 2. "I Knew You Were Trouble." is a song recorded by American singer-songwriter Taylor Swift for .. part of the setlist on Swift's World Tour. A acoustic version was performed as a surprised song on Taylor Swift's Reputation Stadium Tour.