Martin worked the stage playfully throughout the night: He ran up the long aisle enthusiastically, rolled on the floor like a child, rocked on the guitar and crooned on the piano.

He held the American flag at one point while the audience roared, later putting it in his back pocket and keeping it there throughout the band's electrifying set, which included songs such as "Yellow," ''Speed of Sound," ''Viva la Vida" and "Fix You."

Martin even joked that he and his band mates Jonny Buckland, Guy Berryman and Will Champion may be moving to the US following Britain's vote to exit the European Union.

"We'll probably be refugees here at some point," he said.

The band went on to finish the night with a cherry, upbeat set. They covered David Bowie's "Heroes" and Tom Waits' "Jersey Girl," a song also covered by Bruce Springsteen. The latter performance earned roaring cheers from the audience, and Martin called The Boss "the greatest artist in my opinion."

Martin ended the night by kissing the American flag and placing a sign above it that read, "Love."

"We as a band want to thank you for coming out, not just tonight but for all the nights," he said toward the end of the show. "(And) for taking all the (expletive) you get for being into Coldplay."