Published Tuesday, 29 May 2012
Nicole Scherzinger pictured at Belfast's Waterfront Hall (© Pacemaker)
The former Pussycat Dolls singer will join the panel for the final day of auditions in London on Wednesday.
Scherzinger previously appeared on the UK panel in 2010 when she stood in for then judges Cheryl Cole and Dannii Minogue, before joining the US version of the show last year.
Scherzinger, who was dropped by Simon Cowell in America, said of her return to the panel at the O2 Arena in London: "I'm super excited to be back in London for The X Factor.
"Last time I was here we found One Direction and I can't wait to find more unique and interesting talent here in the UK."
She joins a succession of guest judges who have joined the show until a permanent fourth judge is found to sit alongside Gary Barlow, Tulisa Contostavlos and Louis Walsh.
On Monday chart-topping star Rita Ora impressed show bosses and the audience when she featured on the panel.
Former X Factor winner Leona Lewis and Geri Halliwell also guest judged on the panel this year.
Auditions move to Manchester next week.