Photograph (Felix Jaehn Remix) Ed Sheeran
9 December 2011, 17:11
Bookies say there is no clear favourite going into tomorrow's showdown.
This year's X Factor final is expected to be one of the closest ever with bookies placing Little Mix just narrowly ahead of the rest of the field.
Bookmakers William Hill revealed that they slashed the odds on finalist Marcus Collins from 5/2 to 2/1 when it was revealed the acts would be performing duets with their mentors.
Spokesman Rubert Adams explained: "The duet has played into Marcus's hands - he now has the momentum and it would be no great surprise if he goes on to win this."
Little Mix are at odds of as low as 5/4 with fellow finalist Amelia Lily on 5/2.
X Factor judges Kelly Rowland, Gary Barlow and Tulisa Contostavlos will all take to the stage with their respected acts at tomorrow's (10th December) final at London's Wembley Arena.