The iconic artists that have been booked to play the Glastonbury Festival have often been the talking point each year. A look back at performances from the likes of Dame Shirley Bassey, Tony Bennett, Neil Diamond, Al Green, Willie Nelson, BB King, Johnny Cash, and of course 2014's appearance by the Queen of Country, Dolly Parton. Johnny Cash - Ring Of Fire Tony Bennett - Laughing at Life Al Green - Take Me To The River Willie Nelson - Always On My Mind Isaac Hayes - Theme From Shaft James Brown - I Feel Good Brian Wilson - Good Vibrations Shirley Bassey - Big Spender Neil Diamond - Sweet Caroline Tom Jones - The Green Green Grass Of Home Ray Davies - All Day and All of the Night B.B. King - Key To The Highway Paul Simon - You Can Call Me Al Kenny Rogers - The Gambler Dolly Parton - 9 to 5