The singer acquired his first piece of ink — a tiny seagull on his hip — at the age of 16. Since then, he's amassed more body art than your average member of the Hells Angels, and each tattoo has its own special and sometimes spiritual meaning . But unless you're very familiar with his Calvin Klein underwear ads or relentlessly stalk his social media feed, it's easy to lose track of his laundry list of tattoos — which, according to one Instagram post, amounts to more than 100 hours of work.