The 'Single Ladies' star is thought to have recruited husband Jay-Z and friend Kanye West to appear on stage with her during the final performance slot of the festival's three-day lineup, reports The Mirror.
It has also been suggested that showbiz couple Chris Martin and Gwyneth Paltrow could take to the stage with Beyoncé on June 26.
Beyoncé was present when Jay-Z controversially headlined the festival back in 2007, but she did not join him on stage for a performance.
The other headliners for the festival are confirmed to be U2 and Coldplay.
The sold-out event runs from June 24 to June 26.
Beyoncé - currently shooting the video for her new single in California - is expected to play new material as part of her setlist.