While Gibb, 69, had been rumoured to making an appearance previously, he has now allegedly been invited to perform a medley of iconic Bee Gees hits with Chris Martin's group on the Pyramid Stage on June 26 at Worthy Farm, reported NME magazine.
Gibb is the only surviving member of the Seventies band he founded with his brothers Robin and Maurice Gibb in 1966.
The singer, songwriter and record producer rose to worldwide fame alongside his brothers as one of the most commercially successful and critically acclaimed groups in the history of popular music.