TV
Rex Features
The creative director confessed that he only heard late on Monday night about the final decision, which is rumoured to be either Motown, Love Songs or Soul.
"The theme has been changed about six times," he told The Mirror. "I only received the final song choices by text 20 minutes ago. I was supposed to have the routines ready by Tuesday morning but it's not going to happen because I didn't even know what they were singing until now!"
Some of the themes rumoured to have been considered include Elton John and Wham!
Mariah Carey and Britain's Got Talent star Susan Boyle will be the special guests on Sunday's results show.
The X Factor continues this Saturday at 8pm on ITV1.
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'Being Human', 'Homeland': Tube Talk Q&ATube Talk answers your questions about shows such as Touch and Raising Hope.
TV Interviews
Randy Jackson on 'Idol' fainting, pressure: Q&AFive singers faint - and one falls off the stage - on most intense Hollywood Week yet.
Reality Bites
BGT v The Voice: Which will you watch?The BBC takes on ITV1 in the spring reality TV wars. Who will you support?
TV Ratings
'The Only Way Is Essex' draws nearly 1mBBC One wins primetime with help from Super Smart Animals and MasterChef.
