"The X Factor" UK 2015 is all set to enter a new phase of the competition after the final Six Chair Challenge 3 episode on Sunday. Simon Cowell's Over 25s will hit the stage to impress him.

Expect surprises and drama on Sunday as Simon Cowell picks his top six Over 25s. He showed displeasure when hosts Olly Murs and Caroline Flack revealed that the public had given him contestants aged over 25.

The audience booed him for that, so it will be interesting to see him choose six out of the total 16 contestants.

Eight more contestants from Cheryl Fernandez-Versini's the Groups will perform on Sunday. Menn on Point, Alien, Rumour Has It, 4th Power, Mon Amie and The First Kings were temporarily given the seats while Decibellas were sent home. The top six groups will be revealed only on Six Chair Challenge 3 episode.

Interestingly, Nick Grimshaw is left with only five contestants from his the Boys category after Tom Bleasby pulled out of the show. It is reported that Mason Noise, who stormed out of the stage after an argument with Simon Cowell, will join Simon Lynch, Seann Miley Moore, Josh Daniels, Ben Clark and Che Chesterman for the next round.

It may be mentioned that judge Rita Ora had earlier chosen Monica Michael, Chloe Paige, Louisa Johnson, Havva Rebke, Kiera Weathers and Lauren Murray for her Girls category.