An incredible line up of stars from the world of pop and comedy come together to mark the nation's appreciation of its servicemen and women.
From Twickenham Stadium around 60,000 troops and fans will be entertained by some of the biggest names in pop, including Robbie Williams, Gary Barlow, Alesha Dixon, James Blunt, Pixie Lott, Enrique Iglesias, Sir Tom Jones, The Wanted, Alexandra Burke and Plan B.
The concert is hosted by comedians Peter Kay, Jason Manford, Michael McIntyre, Jack Dee, Rhod Gilbert, Kevin Bridges and the legendary Bruce Forsyth.
Proceeds from the event will go to the Help for Heroes Charity, which raises funds for wounded service personnel and their families.