Over the weekend, Avril Lavigne sent out a subliminal tweet saying: "Uh-oh girls day turning into girls night. Should I get a tattoo???? Haha."

It turned out she did go ahead and get a tat-on her neck! As for what it was, she Tweeted: "It comes in handy all the time, it can hurt you, but at the same time keep you together, safety first!"

It's a safety pin.