Jack Osbourne is battling to get back in shape all over again, after confessing he piled the pounds back on over Christmas, by bingeing on junk food. The 20-year-old lost nearly 70 pounds (23 kilograms) last year shooting TV show JACK OSBOURNE - ADRENALINE JUNKIE, only to slip up during a winter "hibernation". He says, "I spent the better part of the winter on a couch, eating ice cream. I went into hibernation mode. Who wants to go out running when it's cold and raining. "I've got back into shape now, but not completely. I'm still about ten pounds over."