Kate Moss believes one of her tattoos is worth millions. The supermodel has revealed the late world-renowned artist Lucien Freud did the inking of two birds on her lower back and thinks it is probably worth a fortune.

The 38-year-old beauty told Vanity Fair, "He told me about when he was in the navy, when he was 19 or something, and he used to do all of the tattoos for the sailors. And I said, 'Oh my God, that's amazing.' And he went, 'I can do you one. What would you like? Would you like creatures of the animal kingdom?' I said I liked birds and he replied, 'I've done birds. I've got it in my book.' And he pointed down at a painting of a chicken upside down in a bucket. And I said, 'No, I'm not having that.' And then he said, 'Maybe I should just do you.' And I thought, I'm not going to have a girl on my a***. So we decided to do a flock of birds. I mean, it's an original Freud. I wonder how much a collector would pay for that? A few million? If it all goes horribly wrong I could get a skin graft and sell it! It's probably the only one on skin that's still around, because when he was in the navy he was about 19. Can you imagine?"

The model became close to the acclaimed artist when he painted her in the nude while she was pregnant with her daughter Lila Grace in 2002. The painting was sold to an anonymous bidder at auction in 2005.