And as you can see from the cat's expression, she had a wonderful time.
Imgur member caroline120006 says that her brother, Sam Steingard, took their cat, Ruby, to the prom. Unfortunately for Ruby, she was just his backup plan. He only asked her out after failing to find a human companion.
Nonetheless, she dolled up in a pink dress and sneakers that match Sam's tie. You can see more photos of them together at the Daily Mail.
-via Fashionably Geek