The 57-year-old reality TV star says the implants will be better on Ozzy's desk "than on my chest 'cause they're awful."
She confirmed reports of her plans to do so during an appearance Monday on the "Today" show.
Osbourne is competing on NBC's "The Celebrity Apprentice."
She says the show is the hardest thing she's ever done in her career, but also the best.
Says Osbourne: "It's constant mental pressure, and you've got such a short time to do each challenge...It's really tough."