Rocker Andrew W.K. is sporting a scar on his arm after pal Ke$ha's attempts to tattoo him left him with an infection.
The "Party Hard" hitmaker invited the party girl to try out her skin art skills on him, but he needed medical attention when the ink effort turned bad.
He tells Spinner.com, "It got infected. It's an unfortunate aftermath and my body ended up rejecting the ink and I had to go to the doctor. But it actually left a nice scar which was, in fact, cooler than the tattoo that's in the exact shape of the tattoo."
And it seems Andrew W.K. is keen to give the "Tik Tok" singer another chance to tattoo him: "If the scar heals a little bit more, I might go back and try again."