Olly Murs will perform at next year's Teenage Cancer Trust at the Royal Albert Hall, as the charity celebrates its 100th show.
Along with a variety of musicians, comedians including Romesh Ranganathan will feature on the line-up.
The event will take place between 27 March and 2 April 2017.
Tickets, which go on sale Friday 2 December, will raise money for the charity, which helps young people in the UK who are diagnosed with cancer.
The first gigs were put on in 2000, having been thought up by The Who lead singer Roger Daltry.
Roger will reunite with his band this year to perform their album Tommy for the 100th show.
It'll be the first time they have done that since 1989.
"The Teenage Cancer Trust concerts at the Royal Albert Hall are now full fledged teenagers, as next year marks our 17th anniversary," says Roger.
"Yet again we have a really varied line up starting with Olly Murs, who is fresh from his fourth number one album."
The charity says there are still some "big names" to be announced.
We already know Jo Brand and Kevin Bridges will join Romesh Ranganathan in hosting a comedy night with guests.
The Teenage Cancer Trust stage has previously been host to performances from Noel Gallagher, Damon Albarn and Tinie Tempah.
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