Taylor Swift is definitely a KatyCat.

After making a dramatic appearance on the 2024 MTV VMAs red carpet in a plaid corset ensemble, the “Fortnight” singer was caught getting down to Katy Perry’s Video Vanguard Award performance of hits on Wednesday night.

In a video circulating on social media, Swift was seen — after changing into a sparkly UFO mini-dress —enthusiastically dancing and singing to Perry’s chart-topping song “Teenage Dream” along with pal Suki Waterhouse.

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Taylor Swift was seen dancing to Katy Perry’s “Teenage Dream” at the 2024 MTV VMAs on Wednesday night.

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Swift was in the audience as the Perry brought the crowd to its feet with a medley of her greatest hits Wednesday night.

It would seem there are still no hard feelings between the two music hitmakers who once famously clashed.

After Swift, 34, revealed her 2014 song “Bad Blood” was about another major star in the industry, fans speculated that the song was written about Perry.

The “Firework” singer, 39, addressed the rift in a 2017 interview on “The Late Late Show With James Corden,” claiming the feud was started by Swift.

At the time, sources told Page Six the problems started over John Mayer, who both women dated at different times.

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Perry took home the 2024 Video Vanguard Award at this year’s MTV Video Music Awards.Kevin Mazur/Getty Images for MTV

The two pop stars, pictured here at the 2011 American Music Awards, famously feuded for years — allegedly over their mutual ex, John Mayer.