The X Factor Judges Kelly & Louis "Not Speaking"

Kelly Rowlandand Louis Walsh allegedly had a "furious bust-up" after Saturday night's live show.

According to The Mirror, the Frankie Cocozza had "lost his swagger" and proceeded to talk over the 59-year old panelist.

The Irish music mogul is also apparently fuming with Rowland for criticising his acts, especially eccentric contestants Johnny Robinson andKitty Brucknell.

Walsh is said to have told a friend: "Kelly has just waltzed in here from America and thinks she knows everything about the show.”

A show source continued: "The way Kelly talked down to him was unacceptable as far as he is concerned. There is no love lost behind the scenes and Louis and Kelly are not speaking off screen and haven’t since Saturday night."

“Louis is just putting all his time into his acts and wants to make sure Kitty, Sami and Johnny have incredible performances."

They added: "He’s already working on their next songs and spent time with them on Sunday night as Kelly and Gary were relaxing with their singers in their dressing rooms.”

In other XF news, boss Simon Cowell is said to be "furious" after it emerged the show lost 2million viewers over the weekend and has reportedly told his UK team to "sort out" the problems.

SEE PICS FROM THE X FACTOR 2011 HERE!