Enrique Iglesias will join previously announced headliners Robbie Williams and James Blunt at a fundraising charity concert at Twickenham Stadium, Sept. 12, to be held in honor of the British Armed Forces.

U.K. pop singer Alesha Dixon, Welsh classical crossover star Katherine Jenkins and U.K. boy band The Wanted have also been added to the bill for the Live Nation promoted event, which is expected to attract an audience of 60,000.

Alexandra Burke, Pixie Lott, Plan B and U.K. girl band The Saturdays have already been confirmed to perform at the one-off gig that will raise funds for the U.K. Help for Heroes Charity organization, which provides care and support for British soldiers wounded in service.