Also joining headliners One Direction at the massive Wembley Stadium gig on Saturday, 6 June will be Carly Rae Jepson, Jess Glynne and Avicii.
What a lineup!
The latest additions to Summertime Ball where revealed by Dave Berry and Lisa Snowdon on today's Capital Breakfast Show, and more names will be confirmed tomorrow.
One Direction were the first act confirmed for the ball. It will mark Niall Horan, Liam Payne, Louis Tomlinson and Harry Styles' first performance in London as a four-piece.
Liam said: "Wembley is obviously one of the best places to play in the world so I'm well excited!"
Last year, artists included Miley Cyrus, Pharrell Williams, Calvin Harris, Enrique Iglesias, 5 Seconds of Summer, Cheryl Fernandez-Versini and David Guetta.
Tickets for the Summertime Ball go on sale Friday, 1 May at 8am on www.capitalfm.com. Pre-sale through Capital VIP and to Vodafone customers begins Wednesday, 29 April at 8am.