Pop singer Anastacia is the latest guest judge on the X-Factor after revealing she will be heading to auditions in Glasgow next week.

The US singer, known for her hit song I'm Outta Love, took to Twitter to tell her fans that she would be attending the ITV1 reality show’s latest filming dates during a trip to Europe.

The singer said: "Head 2 Berlin for Skoda show then Glasgow 4 X-Factor auditions. Funfunfun (sic)."

The 43-year-old singer has reality TV experience, having appeared as a judge on Channel 5's short-lived Glee-inspired series Don't Stop Believing.

Anastacia has sold over 20 million records worldwide and scored six top 20 hits in the UK between 2000 and 2004 when she released the albums Not That Kind, Freak of Nature and her self-titled third LP.

If she does join the judging panel, she will become the sixth guest judge of the series, following Mel B, Geri Halliwell, Nicole Scherzinger, Leona Lewis and Rita Ora.

Halliwell, Mel B, Scherzinger and Rita Ora are all thought to still be in the running to join Gary Barlow, Tulisa Contostavlos and Louis Walsh as the fourth full-time judge.

X-Factor's Glasgow auditions take place next week. The show will wrap up its UK tour with dates in Newcastle and Cardiff later this month.