A tattoo draws a lot of attention to itself. So if you're a fame-hungry celebrity in the competitive world of getting more fame, it takes a lot of confidence to dedicate a space on your body to free PR for someone else. But it happens. Here are a few celebrities who were confident enough to let another celebrity's portrait sit proudly on their flesh.

1. The anonymous-faced Ryan Cabrera has the angel-faced Ryan Gosling on his leg.

Ryan Cabrera is a singer, perhaps best known for a fling with Ashlee Simpson. He doesn't have an amazing resume. You know who does? The guy whose face is on his lower right leg—Ryan Gosling