Ouch!

Kelly Osbourne submitted to some cranial ink over the weekend, with a new tattoo on her scalp just above her left ear reading, "Stories ..."

Bet she'll have some stories to tell after this latest sesh at Shamrock Social Club in Hollywood. Fortunately, the Fashion Police hostess with the mostest already had a half-shaved head -- the tattoo artist just had to go a little deeper with the razor to reach fresh skin.

The 28-year-old caption her Instagrams, "#oops what did I do tonight?"

Stories, indeed!