Before she was a lightning rod television personality, Sharon Osbourne was a savvy music business operator under the tutelage of her maniacal father, the “Al Capone of Pop,” Don Arden. Together, Sharon and Ozzy just barely escaped his poisonous grasp, but that was only part of what she would have to survive.
Sources:
Extreme by Sharon Osbourne
I Am Ozzy by Ozzy Osbourne
Iron Man by Tony Iommi