Beyonce to duet with X Factor Ella?
Beyonce is rumoured to be making an appearance on The X Factor final, to sing a duet with one of the contestants.
Show boss Simon Cowell reckons that the Single Ladies singer, who sang with eventual winner Alexandra Burke in 2008, could give the ITV1 programme a boost.
And if teenage singing sensation Ella Henderson makes the final, she is tipped to perform with the US star.
A source told the Daily Mirror: "We are delighted to get Beyonce on the show because she is such a huge crowd pleaser and will make sure the final goes with a bang.
"The last time she sang with Alexandra and we hope to have her sing a duet again. Ella is the one most likely to sing with her because hearing their voices together would be just amazing."
JLS, Labrinth and Emeli Sande will feature in the live show on October 21, while One Direction are also expected to return at some point.
Other stars are being lined up to appear on The X Factor final, which will be held in Manchester on December 8 and 9.
Meanwhile, Melanie Masson has revealed that Gary Barlow plans to be her mentor, even though she has left the ITV1 singing competition.
The 44-year-old mother-of-two, who was voted off after a sing-off with boyband District3, told STV.tv: "Gary was really disappointed. He wants to write some songs for me. We've become friends as well now and he's still giving me advice. He's giving me good career advice."