So did she keep the party going after a night of singing and dancing (and dancing some more)?
"Video shoot early tomorrow, so my Grammy after-party situation looks like.........," the show's opening act, 23, Tweeted post-ceremony, alongside a picture of the cutie she commemorated her win with: her cat Meredith, of course.
Although the recently single singer opted to wear a silver-and-ivory pleated J. Mendel gown instead of her kitty T-shirt, we'll assume Meredith, an avid and proven fan of Swift's music, was proud of her owner.
"She is awesome," she gushed of her post-Grammys date to Katie Couric last year. "She's like the most adorable cat in the world."