31/08/2011 08:02 BST | Updated 31/10/2011 05:12 GMT

'X Factor' Judges' Groups Revealed

Louis Walsh has once again been given the least successful X Factor group to mentor, after being trumped to the desirable contestants by new judges Gary Barlow, Tulisa Contostavlos and Kelly Rowland.

Walsh, despite being a loyal X Factor judge for seven consecutive years, has been given the Over 25s to mentor - a group that hasn’t provided a winner since Steve Brookestein in series one.

New top dog Barlow - who is fitting in nicely to Simon Cowell’s shiny shoes - will mentor the sought-after Boys category over in LA. There are even rumours that he will team up with his Take That band-mate Robbie Williams to create the next pop superstar.

Rowland, who has been given the equally successful Girls group to look after, will no doubt impart lots of the fabulous mottos and life lessons she's acquired from more than five years alongside Beyonce in Destiny’s Child, on to her lucky mentees.

Meanwhile, X Factor first-timer and N-Dubz member Contostavlos will be in charge of turning the Groups into winners, and will be hoping her acts can top JLS’s runner-up spot.

And as if Walsh hasn’t had enough salt rubbed into his musical wounds, Cowell has now drafted in his sidekick Sinitta as Walsh’s co-mentor, instead of the talented Someone Like You singer Adele who Walsh had hoped for.

A source told the Sunday Mirror: “He was fuming, he saw it as yet another snub after he lost out to Gary as head judge.”