Taylor Swift appeared to vent against former boyfriend Harry Styles not once, but twice at the MTV Video Music Awards on Sunday night (Aug. 25).

Swift, 23, took home the award for Best Female Video for 'I Knew You Were Trouble.' She seemed to take a shot at Styles after thanking her supporters.

“I also want thank the person who inspired this song, who knows exactly who he is, because now I got one of these!” she said, holding up her award as the camera panned to Styles.

Later in the evening, Styles and his One Direction band mates took to the stage to present an award. According to Us Weekly, Swift, who was sitting with her friend Selena Gomez,  was caught on MTV's audience cam, looking like she said "Shut the f--- up" while Styles was addressing the audience.

The couple dated for a few months before breaking up in January.

Swift, who was also captured on camera dancing to the 'NSYNC reunion, told reporters on the red carpet that she is working on songs for a new album.