Former hell raiser Jack Osbourne is proud he has achieved four years
without drink or drugs.
The TV star ended up in rehab when he was just 17 after becoming
addicted to 'hillbilly heroin' Oxycodone.
Four years on, Osbourne is now a different person.
He says, "I've been going strong for a little over four years now
without a mind-altering substance. I know what it's like to drink and I
know what it's like to do drugs - I don't need to remind myself."