How dedicated were you to your Halloween costume? Oh, you dip-dyed your actual hair so you could be an authentic Harley Quinn? That's cool, but, uh, Kesha got a tattoo of hers.

For Halloween, Kesha dressed up as a narwhal in a onesie. It was a simple, comfortable costume, and one she obviously felt strongly about: hours after dressing up like the whale, she got one permanently added to her body.

Kesha debuted the mythical-looking, but very real creature on Instagram, writing, "haaaaaaaaaaaaaaay. had to immortalize last night❤️." IDK what part of her body this is — arm? — but there it is, forever.