HOLLYWOOD - Hairspray star Brittany Snow has stunned fans by revealing she once lived on pineapple and weighed a skeletal 85 pounds.

The 21-year-old actress admits she hasn't always been a bubbly, healthy blonde.

She tells MTVu.com, "When I was about 15, my lowest weight was 85 pounds... My hair was falling out but I was more scared that 85 pounds wasn't good enough."

Snow knew it was time to get help when she had to start mutilating herself to stop the hunger pains: "My rock bottom came when I started cutting a lot."

The actress checked into rehab at 19, as her career was taking off in TV drama American Dreams.

http://www.hollywood.com/news/Hairspray_Star_Reveals_Eating_Disorder_Battle/4922348