Taylor Swift

Tattoo: A running list of her ex-boyfriends, crossed out.

Explanation: It's a brilliant solution to Taylor's problem. Instead of writing songs about her exes, she can go update her tattoo every time she goes through a breakup by putting a black line through his name. She will feel avenged by publicly shaming her exes and we will be relieved from having to hear breakup poetry music. Win, win!