Colin Farrell
Even in today's day and age, Colin Farrell hasn't given up on the principles of "true love." The tattoo on Farell's left peck reads "love no matter." Apparently this is a reference to his belief in true love and the healing power of human relationships.
Justin Bieber
Much like the other celebrities on this list, Beiber is a fan of single-needle subtlety in his highly-visible areas. This tiny face tattoo was a couple's tattoo that Bieber got with his then-fiancee, now wife, Hailey Baldwin. The tattoo reads "Grace," and although the tattoo's significance is not known, we do know that Bieber got this tattoo removed a few months ago.