A Sober Young Osbourne

Photo: Winston Burris / PR Photos

Jack said he'd sobered up since he last talked with Howard: "Last time I did your show, I was wasted." Citing alcohol as his drug of choice, Jack said he started drinking at 13 or 14. Rehab helped him locate the roots of his problem: "It was hereditary and I kind of inherited it, you know, from my dad."