Simon Cowell has joked that Tulisa Contostavlos is the new head judge on The X Factor.
The Syco boss justified his pick by citing the 'Young' singer's 2011 win with girl group Little Mix in her inaugural year.
Cowell wrote on Twitter earlier this evening: "I understand Louis & Gary are squabbling as to who is head judge..since @OfficialTulisa won last year, she is the reigning head judge."
Contostavlos then replied: "@SimonCowell you tell them simon! LOL"
Barlow was the first name to be unveiled for 2012's X Factor series last month, while Walsh's return for a ninth year was announced yesterday.
Contostavlos's place on the new run has not yet been officially confirmed by ITV bosses.
Cowell's comments appear to rule out a return to the show in the autumn, despite Kelly Rowland's departure.
Dannii Minogue, who previously starred on the singing show between 2007 and 2010, has been heavily linked with the vacant role since her secret affair with Cowell was leaked.
The 52-year-old has previously stated his wish to appear on both UK and US versions of The X Factor this year.
