Some people may be afraid of piercings and tattoos. Not me, I like them and apparently celebrities like them too. Take a look at these celebrities and taking chances. I personally think it adds to your character. Edgy and rebelious is a risky change, however you can be subtle about it.
Rhianna and "Shhh" on the right side of her index finger.
Pink and "What Goes Around Comes Around" wraped around her wrist.