Coldplay andU2 will join Queen B in topping the Glasto roster, after the Irish rockers were forced to pull out of last year festival due to lead singer Bono's surgery - leaving Gorillazto fill their boots.
Destiny's Child singer agreed to headline Glasto last month, with Michael's daughter Emily posting on Twitter: "Third headliner just confirmed, we will announce in spring.”
A spokesperson for Beyoncé has declined to comment on whether Knowles will headline the festival, but Bey has previously claimed that she "would love" to perform on the Pyramid stage.