Double-act The MacDonald Brothers remain favourites to be voted off 'The X Factor' this weekend.
Bookmakers William Hill have currently placed the brothers, who hail from Scotland, at odds of 15/8 to leave the show this week.
Nikitta is second favourite at odds of 9/4, while Robert is currently on odds of 4/1 to be voted off the reality show.
A William Spokesperson said today: "The Scottish vote has cost reality TV punters dear in the last three weeks as the MacDonald Brothers have been the best backed to go every week. Punters have now turned on Nikitta who at 9/4 looks a better bet."
This week the contestants will be asked to sing songs previously recorded by Abba.
According to the show's official website, The MacDonald Brothers will sing 'Fernando', Eton Road will sing 'Does Your Mother Know?' and Ben is due to perform 'SOS'.
'Take A Chance On Me' is Robert's chosen song, while Ashley will sing 'The Winner Takes It All' and Nikitta is due to perform 'Dancing Queen'.
Leona will perform 'Chiquitita' and Ray will sing 'Waterloo'.
