Taylor Swift looked stunning as she received her moon-man for Best Pop Video as well as when she presented the VMA for Best Male Video. It looked as if the “I Knew You Were Trouble” singer was having a grand time with good friend Selena Gomez until One Direction hit the stage! The pop superstar made a huge mistake when she told the guys to “shut the f-ck up” when they delivered their presentation. Its almost as if she forgot that the cameras were paying attention to her 10% of the show! Not a good move T-Swift! A video of Taylor mouthing the remark has since gone viral! Check out the footage below!