Ozzy Osbourne's son JACK refuses to blame his role in reality TV show The Osbournes for his battle with booze, insisting his genes left him vulnerable to alcoholism. Both Jack and his sister KELLY endured stints in rehab after the show shot them to fame in 2001, and the 20-year-old is convinced they were always destined to battle the bottle. But the star, who has recently developed a love of extreme sports, is determined to remain healthy. He says, "I think it would have happened anyway. Some people are born with bad eyes or kidneys, and some with alcoholism. "I believe I was born with it."