Britney Spears will be jetting into London to sing at this year's Apple Music Festival.
DJ Calvin Harris, Robbie Williams and Sir Elton John have also been announced for the 10-night event at the Roundhouse.
The full line-up - marking the festival's 10th anniversary - also features Alicia Keys, Bastille, Chance the Rapper, Michael Buble, OneRepublic and The 1975.
Brit, who was criticised by fans for lip-syncing when she became the latest singer to join James Corden on Carpool Karaoke, said: "I'm so excited to go back to London, which is a special place for me to visit, and I'm really looking forward to performing at the Apple Music Festival.
"It's also their 10th birthday. It's going to be a great party."
Apple's vice president of international content Oliver Schusser said: "Over the past decade the festival has brought the biggest and best artists from all over the world to London and into the homes of millions of music fans.
"This year's Apple Music Festival builds on that incredible legacy and we couldn't be more excited to have another amazing line-up to celebrate our 10th birthday."
Apple Music Festival runs from September 18 to September 30.
Fans in the UK can apply to win tickets by entering prize draws while the shows will also be made available live and on-demand to Apple Music members.