In September 2014, at the closing ceremony of the Invictus Games—international sports competitions for veterans founded by Prince Harry in 2014 as a rehabilitation platform through sport—Foo Fighters, the California rock band whose album Sonic Highways (2014) with its documentary recording approach in various cities reflected global scope, headlined the concert at Queen Elizabeth Olympic Park in London. Their 90-minute set, with Pat Smear's guitar riffs and Taylor Hawkins' drum power, embodied tour climax, fusing stadium anthems like "Learn to Fly" with improvisational jams to spark euphoria among 26,000. With guests like Kaiser Chiefs, this performance highlighted their veteran status, turning the Olympic park into an arena of unity and healing.