Andy Williams will be 82 when he plays the festival
Veteran US singer Andy Williams has announced he will be performing at next year's Glastonbury Festival.
The 81-year-old revealed the news at the Cheltenham Literature Festival, while talking about his autobiography.
The audience cheered when he said he had been invited by festival organiser Michael Eavis to perform at the festival's 40th anniversary.
A spokesman for Glastonbury said they would not comment on the line-up until it is officially announced next year.
Expectations are high
The full line-up is only revealed two months before the June festival, although headline acts are likely to be revealed in the new year.
Glastonbury takes place between 23 and 27 June
Organiser Eavis has admitted "expectations are really high" for the 40th anniversary line-up, adding: "We're trying to get the best headliners in the world."
The Rolling Stones are rumoured to be among the bands the festival is wooing.
Tickets for next year's event sold out in less than 24 hours earlier this month.
This year 137,000 music fans watched headline acts Neil Young, Bruce Springsteen and Blur.
Williams, best known for Can't Take My Eyes Off You and Music To Watch Girls By, has been in the UK in recent weeks promoting his autobiography, Moon River And Me.