Ozzy Osbourne is "addicted" to exercise.

The 61-year-old former Black Sabbath rocker spends hours working out in his home gym every day because he is terrified of being overweight. Ozzy has been slim his whole life, but piled on the pounds when he first tried to wean himself off drugs in the 1980s.

He hated feeling fat so much, he has vowed never to put on weight again and has exercised religiously ever since.

"I`m addicted to exercise since I hate feeling overweight," Ozzy admitted to Us Weekly magazine.

Despite his obsession with working out, Ozzy still enjoys eating junk food. His favourite snack is black liquorice, which he consumes whenever possible.

"I love black liquorice! I love it," he said.

Ozzy`s wife Sharon and children Kelly and Jack have also publicly struggled with their weight.
sections: Celebrities