X Factor 2012 final 12 prepare for the live shows... but who are they?

Gary Barlow (The X Factor 2012)

The X Factor 2012 final 12 have been chosen, and they've been busy preparing for the live shows this week in London.

The X Factor judges spent last last month deciding which of the acts in each of their categories would be going through to the final sages of the show.

Show bosses are keen to make sure that they won't be revealed before the show airs, secretly transporting them to London this week to kick off preparations.

There will no doubt be the usual makeovers, and of course plenty of filming.

Xtra Factor host [tag]Caroline Flack[/tag] revealed yesterday on Twitter: "Off to interview secret people at a secret place. Shhhhh."

Meanwhile, perhaps in a swipe against Frankie Cocozza, [tag]Gary Barlow[/tag] said he had a "lovely bunch" of acts in his category this year.

He tweeted: "Been routining with my X factor lovelies all afternoon. What a lovely bunch I have this year ! #tooexciting [sic]"

The Take That star is rumoured to have the Overs category, who have been notoriously unsuccessful in the show's nine year history.

However this year Gary has acts such as [tag]Christopher Maloney[/tag], [tag]Melanie Masson[/tag] and [tag]Carolynne Poole[/tag] to choose from... but will any of them make it through to the live shows?

We'll find out when the X Factor judges' houses air on September 29 and 30 on ITV1 and the X Factor final 24 are revealed!

The bootcamp double bill airs this Saturday and Sunday.

Watch our interview with Christopher Maloney below...

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