I need HELP.

     I'm getting a tattoo this week, but I don't know whether or not it's allowed? I want a small Chanel logo behind my ear, but I'm not sure, is that illegal? Because my uncles all have the Newcastle United logo and my Business Communications teacher has the Ibiza Rocks sign on his ankle, but I don't know whether or not Chanel is ok, with it being designer? I really need help!