Taylor Swift has been announced as one of the headliners for next year's Glastonbury Festival.
The US pop star will play at the event as it celebrates its 50th anniversary.
She tweeted: "I'm ecstatic to tell you that I'll be headlining Glastonbury on its 50th anniversary - See you there!"
Glastonbury organiser Michael Eavis said in a video posted on Twitter: "I'm so pleased to announce that Taylor Swift is going to be headlining the Sunday of Glastonbury this year.
"She's one of the biggest stars in the world and she's young and she's a fantastic American girl, and it's going to be beautiful, and her songs are absolutely fantastic.
"We're so delighted."
Swift, who recently celebrated her 30th birthday, will be the first female to headline the festival since Adele in 2016.
The singer joins Diana Ross and Sir Paul McCartney on the bill.
Ross, who made her name in The Supremes, was the first artist confirmed for 2020.
Announcing her performance in the Legends slot, the Motown singer tweeted: "This is a dream come true.
"To all the fans across the world, this is my tribute to you.
"I'm coming to Glastonbury, with love."
Sir Paul was the first headliner announced.
After the singer was confirmed, organiser Emily Eavis confirmed there were two more headliners to come - one male and one female.
Glastonbury, which is held in Pilton, Somerset, runs from June 24 to June 28, 2020.
Tickets for the festival sold out within a matter of minutes in October, with more than two million people initially registering an interest.
Organisers spoke out to warn those still hoping to attend, with Emily Eavis taking to Instagram to warn against using sites other than the official Glastonbury partner - See Tickets.
In a post, she said: "Please note - all Glastonbury tickets have now sold out and there will be an official resale in the spring.
"Only See Tickets are authorised to sell tickets for Glastonbury Festival.
"No other site or agency will be allocated tickets. All Glastonbury Festival tickets are personalised and cannot be re-sold. Please do not risk falling victim to unauthorised sellers or buying fake tickets."
The resale is the final opportunity for those hoping to attend the festival.
