Taylor Swift might have brought a dash of vintage Hollywood to the 2013 MTV Video Music Awards last night (Aug. 25), but it looks as if she also brought her potty mouth!

Captured by cameras while One Direction were presenting an award onstage, Taylor appears to be saying, "Shut the f--- up"!

You can watch the whole segment in context above, or just read her lips in this tweet:

T. Swizzle was talking in the ear of BFF Selena Gomez, who then went on to accept her first-ever Moonman from the 1D guys! Awk-ward.

While the Taylor clip was shown directly after Zayn Malik spoke onstage, we're betting the unkind words for ex Harry Styles, who had said his lines just before.

For those watching closely, the Haylor show threatened to eclipse the VMAs themselves. No one could miss the obvious reference to Hazza in Taylor's acceptance speech for Best Female Video!