From WENN.com

Ozzy Osbourne's wife quit the series earlier this year (12) following a disagreement with bosses at U.S. network NBC.

Network chiefs have not yet announced who will be replacing Osbourne on the panel, which also featured Howie Mandel and Howard Stern in 2012, but O'Donnell has revealed she is in the running.

She tells The New York Observer, ""I am very interested in doing America's Got Talent with Howard Stern and I am talking to them. Let's see how that works.""