KELLY OSBOURNE - OSBOURNE REVEALS THE FULL EXTENT OF HER PILL ADDICTION

KELLY OSBOURNE was so paranoid about running out of painkillers when she was at the height of addiction, she'd stash up to 500 pills in her bedroom.

The pop star daughter of OZZY OSBOURNE was always paranoid that she wouldn't have a pill handy when she needed a fix, while she was filming reality TV show THE OSBOURNES.

She recalls, "There isn't one episode where I wasn't on something. When I was stoned, I'd get scared that I'd run out one day, so I hid them."

Osbourne admits she shocked family and friends when they raided her bedroom after her drug problems became clear - and she checked into rehab last year (04).

She adds, "They found something like 500 pills in my room when they cleaned it."