Taylor Swift sure knew how to make an impression last at last nights' MTV Video Music Awards. Not only did Swift make one hell of a thank you speech but she also dropped the f-bomb during One Direction's presentation award. The country crooner sure did prove she was one "Mean Girl" at the VMAs.

Dressed to impress, Taylor Swift rocked the VMAs red carpet with a navy coloured number featuring a plunging Herve Leger by Max Azaria. The dress accentuated Swift's graciously slim figure and curves. As for the hair, Swift rocked the wavy vintage up-do plus finished off the look with red lips and smokey eyes.

Of course, the dress wasn't the only notable thing about Swift that night. While One Direction were up onstage presenting an award, the cameras panned to Taylor Swift where she obviously mouthed the word "shut the f*** up." 3am posted the whole thing on their Twitter account. Check it out below.

Did Taylor Swift just mouth "shut the f*** up" at One Direction? #VMAs https://t.co/kzxoS07Q0e

— 3am (@3am) August 26, 2013

Another incident where Taylor Swift acted like the "Mean Girl" that she is was during her acceptance award speech. Swift won the award for Best Female Video for her song, "I Knew You Were Trouble." Everyone knew who the song was for and Taylor certainly wanted to remind everyone present that evening of that fact.

"I also want thank the person who inspired this song, who knows exactly who he is, because now I got one of these!" said Swift while holding up her MTV VMA Moonman award with one of the cameras panning out to Styles' shocked face.

Fans didn't fail to notice Niall Horan's reaction who was seated to Harry Styles. Niall Horan looked to Louis Tomlinson saying, "Horrible, I fucking told ya," then turned back to look at Harry Styles before smiling.

Hopefully, One Direction and Taylor Swift can set aside their issues and focus on what matters most - the music. As for Taylor Swift, the "Mean Girl" act is starting to get old and she definitely needs to move on from the "Haylor" past.

Check out the slideshow to see more of Taylor Swift at last nights' MTV Video Music Awards.