He'll be joining Bono and co. in Trafalgar Square on Saturday - a day before the MTV Europe Music Awards.
U2 are to perform a free concert the day before they receive the Global Icon award at the ceremony, while David will do a special one hour set.
David will then take to the stage again during Sunday night's ceremony for the world premiere of his new single with Charli XCX and French Montana, called Dirty Sexy Money.
