William Morris said that its focus would be on pushing The Osbournes for television and commercials. Sharon Osbourne has already been seen in the UK promoting Asda, while her daughter did a Woolworths ad in 2007. Ozzy has appeared in a spot for I Can't Believe It's Not Butter.
The family became TV personalities with the 2002 fly-on-the-wall documentary they filmed for MTV in Los Angeles. The show revived the career of Ozzy Osbourne and made stars of the rest of the family, as well as winning an Emmy.
Sharon has also been an 'X-Factor' judge for four year and is now appearing on NBC's 'America's Got Talent'.
The family are now appearing in a variety show called 'The Osbournes: Live and Dangerous', which is being produced by FremantleMedia North America for Fox.
John Ferriter, executive vice-president and head of non-scripted television at William Morris, said: "The Osbournes are international stars and have become a part of today's entertainment culture. We look forward to exploring opportunities that will capitalise on the family's global appeal and will follow the production of their new show."
Kelly had a run in the West End stage show Chicago, among other jobs; Jack is in the fourth series of presenting 'Jack Osbourne: Adrenaline Junkie'; while Ozzy's music career is still going strong.