It has been confirmed that the fourth season of 'The Osbournes' will be the last.

MTV.com reports that the new series premieres in the US on 13 September and matriarch Sharon has said: "the time was right to call it a day."

However, Sharon has three new shows in the works, including a proposed talk show with husband Ozzy and a new role as a judge alongside Simon Cowell on a talent show called 'The X Factor'.

Daughter Kelly is also starring in a new teen drama in the US called 'Life As We Know It'.