So they will meet face to face on Saturday's installment of the show for the first time since Osbourne claimed Cowell worked with his favorites in the over-25 singers' group to make them more appealing, the London Mirror reported.
"I'm not going to leave because I work for ITV and not him," Osbourne says of Cowell, using an expletive to describe him. "But he's pissed me off. He's rigged it all."
But Cowell denies her claim, telling the Mirror: "She thinks I have an unfair advantage but it's tosh. People are simply more interested in the older contestants. She is desperate to win."