Artists including KSI, Yemi Alade, and Shawn Mendes will also take to the stage at London's Alexandra Palace next Sunday. Coldplay's set, which will take place outside the venue, will use energy powered by 60 cyclists. The Earthshot Prize was set up by the Prince and The RoyalFoundation last year to help tackle environmental issues. Five winners will be picked for their solutions to a range of eco-issues and a total of ￡1million in prize money will be awarded.