The Backstreet Boys heartthrob is a reference book of tattoos, including a tribal band on his right arm, his nickname KAOS tattooed down his back, a seahorse, a moon, and a sun. If there is any kind of theme to Nick Carter's tattoo collection, it would be "Designs You Often See in a Tattoo Parlor."
Nick Carter's most inexplicable tattoo is the shark on his left bicep, which is accompanied by the Chinese characters for "Poseidon," the mythical god of the sea. The musician recently had the tattoo substantially redesigned, as you can see in these before-and-after photos. Why he kept the Chinese characters for a Greek god is a bit of a mystery.
Finally, his "Paris" tattoo, inked in honor of then-girlfriend Paris Hilton, was redesigned as a skull and crossbones with the motto, "Old Habits Die Hard." The "old habit," in this case, might be getting tattoos without thinking!