Father's Day comes once a year, but some dads want to celebrate their kids all year long . . . with a tattoo. And while there are plenty of dads who get inked for their children, the world is lucky enough to get frequent glimpses at some of these permanent gestures on celebrities. From a soccer star to a rapper to an A-list actor, these stars all suffered the pain of getting inked for the love of their little ones. Keep reading to see some of Hollywood's best dad tattoos, then check out the ultimate celebrity tattoo gallery.