Pop singer Pink was staggered when Sir Paul McCartney's animal activist wife Heather Mills MCCARTNEY told her to stop wearing fake fur. The JUST LIKE A PILL star, who is close friends with the former model, thought she was doing the right thing by shunning real fur and opting for the supposedly ethical option. But Mills MCCartney claims even fake fur can sometimes come from dogs or cats. She says, "I think she's amazing. She's opened my eyes about a lot of issues. "She told me that even fake fur isn't safe. It turns out that tests have shown a lot of it is cat and dog fur. I was, like, 'No!'"