Does charlie hunnam really have the SOA tattoo on his back?

When Charlie was is in "Men's Fitness", they took video of his photo shoots. You can see something between his shoulder blades but I can't tell what it is. You can go on that and try and find out, but I haven't found anything yet. He doesn't like visible tattoos because it is a pain to cover them for roles. Here is the link for the videos. http://www.mensfitness.com/lifestyle/348