Coldplay have used their showbiz contacts to organise Under 1 Roof, a benefit concert in aid of Kids Company at London's O2 Arena.
Tinie Tempah, Emeli Sande, Rob Brydon and Steve Coogan - appearing as his alter ego Alan Partridge - are among those who will perform at the charity gig on Saturday 10 December, along with the Grammy-award winning rock stars themselves.
Coldplay said: "Kids Company is a phenomenal organisation that is very close to our hearts.
"We hope that people get behind the event to raise as much money for Kids Company as possible. On our side, we can promise anyone that buys a ticket that they'll be part of a very special night."
Kids Company works with vulnerable children and young people in some of the most deprived areas of London, working across four centres and in 40 schools.
Kids Company Founder and CEO, Camila Batmanghelidjh said: "Coldplay's continuing support is fantastic. They have already provided funds to help thousands of children who have suffered violence and neglect. How amazing that they are now being joined by other generous friends for Under 1 Roof, to establish what we hope will become a regular event, generating vital support for many more children in years to come."
Tickets will go on sale Friday November 25 at 9am at www.gigsandtours.com and www.ticketmaster.co.uk