Essentially, celebrities (or the stylists who dress them) are the original trendsetters. Many beauty and fashion trends are often inspired by megastars rocking their hawt-est looks. And, well, the rest of us are just copycats, or, in social media terms, followers. However, while the world is copying everything they do, there's something that is entirely theirs and is often hidden under their garments. And that is celebrity tattoos.