Taylor Swift Dances for International Cat Day and Shawn Mendes' Birthday: See the Cute Clip!

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No one knows how to celebrate International Cat Day like Taylor Swift! The 26-year-old pop star tried out the new Instagram Stories feature on Monday and rocked out in honor of two very special occasions.

“Partying cause Shawn’s Bday & International Cat Day,” she captioned the clip of herself dancing to pal Shawn Mendes’ “Treat You Better” while wearing a cat sweater.

WATCH: Taylor Swift Rocks Curly New 'Do, and We're Loving It -- See the Pics!

Swift was sporting her new curly hair and seemed to be having a blast. Her two cats, Meredith Grey and Olivia Benson, were nowhere in sight.

That same day the GRAMMY winner was spotted out on the streets of NYC, first wearing a jean overall mini dress and then rocking all-black gym clothes.

This comes after Swift attended a birthday bash in the Hamptons for her pal Karlie Kloss and mutual friend Mike Hess over the weekend. The singer performed “Dilemma” with rapper Nelly for the cheering crowd.

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WATCH: Taylor Swift Parties in the Hamptons at Bestie Karlie Kloss’ Birthday Bash, Performs With Nelly

Swift has been keeping a relatively low profile ever since Kim Kardashian released videos of the singer talking on the phone with Kanye West. The videos seem to show that Swift approved West’s song “Famous,” a claim she later denied.

The “Bad Blood” singer called the clips “character assassination.”

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