Gilmour wants the extent of his involvement "to remain secret", claims Waters
The track marks the announcement of 'Peter Green - The Albatross Man', a new book to celebrate the Fleetwood Mac icon's life
"I absolutely don't want to go back"
Gilmour has teamed up with his wife Polly Samson to contribute to the audiobook version of her latest novel
"Just change the name of the band to Spinal Tap".
The guitarist paid tribute to his former Pink Floyd bandmate on his 'Von Trapped Family' livestream
The revolving bill of special guests took turns to cover Fleetwood Mac classics.