Extra security has been called in after arch enemies Liam Gallagher and Robbie Williams were both booked to perform.
Liam is singing live with his band Beady Eye on Saturday night, while Robbie will be on set to pre-record a performance with Dizzee Rascal.
Worried bosses are keeping the warring pair – who first clashed in 2000 – on separate sides of London’s Pinewood Studios.
A show source said: “Relations between Robbie and Liam do seem to have become less hostile but the bosses aren’t taking any chances.
“They had hoped they wouldn’t be in the studio at the same time but as Robbie’s tour clashed with the final, his performance has to be pre-recorded. So we have given them separate Winnebagos on either side of the studio and called in extra security to be on hand in case the pair do kick off.”
Robbie – who challenged Liam to a televised fight at the 2000 Brits – have bashed heads repeatedly over the years.
And recently it emerged that Liam, who married Robbie’s ex Nicole Appleton, also ended up with the cat his rival shared with the All Saints singer.
Robbie said: “I am now in my 40th year and I think it is time for a cat.
“I used to have one when I went out with Nicole. We went to Harrods one day and bought one. I wonder if she is still alive. Nicole got her, in the ‘cat-vorce’.”