X Factor's Hannah Barrett put on diet by Nicole Scherzinger

The going is getting touch for X Factor hopeful Hannah Barrett after she was put on a strict diet by her mentor Nicole Scherzinger.

The 17-year-old singer was handed the eating restrictions in a bid to curb her bouts of acid reflux ahead of Saturday night's 10th anniversary show.

"Hannah's now been banned from eating dairy, fried food or salt and the only drink she's allowed is water," a show insider told The Sun.

Saturday's show will see the six remaining finalists performing songs from former X Factor contestants - in honour of the show's ten years on the air.

Olly Murs and One Direction are among those who will also join in the X Factor celebrations on ITV from 8pm.

However it might not be so much of a celebration for Hannah - who is the bookies favourite to get the chop.

Currently Ladbrokes are offering odds of 4-6 on her getting her marching orders on Sunday night, with Luke Friend 5-2 second favourite for the exit.