Ozzy and Sharon Osbourne are filming a public-service announcement for early cancer detection, and it's going to be hilarious, according to Star magazine. The ad features the whole family, with Sharon, who is battling the disease, talking about her medical experience. Suddenly, Ozzy butts in and gives HIS opinion. "Don't be a fucking fool," he says in his typical expletive-sprinkled way. "Get tested NOW!"