Katy Perry has four tattoos, but the most interesting one is definitely her first. When the star was just 18 years old she got "Jesus" tattooed on her left wrist. She has said of the tattoo, "I knew I wanted this on me because no matter how much changes around me or how much I change, there's not really an eraser for this. It stares right back at me. It's like 'remember, you came from this, and you can always go back to it.'"