X Factor finalists ready for duets
The X Factor field of finalists will be reduced to just three as the competition enters its final weekend.
One of the four remaining acts will be eliminated following a solo performance and then a duet with a celebrity guest.
Robbie Williams will perform with boyband One Direction, while Rihanna will sing alongside Matt Cardle.
Cher Lloyd will be joined by Black Eyed Peas star Will.i.am and Rebecca Ferguson will be teamed up with Christina Aguilera.
As well as having celebrity back-up, each act will be supported by a star in their rallying the troops in their home towns.
Coleen Rooney will lead the crowd cheering on Ferguson in Liverpool while the newly-crowned Queen Of The Jungle Stacey Solomon, will be in Essex with a crowd supporting local boy - and hot favourite to win - Cardle.
Michelle Keegan, who plays Tina McIntyre in Coronation Street, will host a broadcast in Manchester for boyband One Direction and DJ Scott Mills will be in Malvern supporting Lloyd.
A second act will be eliminated early in the Sunday show before one of the remaining two is declared the winner later in the evening.
X Factor supremo Simon Cowell has said he "genuinely" wants One Direction to win but admitted if he was a betting man his money would be on Cardle.
The bookmakers seem to agree, with Betfair putting the former painter and decorator at evens to win ahead of Rebecca at 3-1 and One Direction at 4-1.