Amex UNSTAGED brings you Kings Of Leon's live performance of 'Radioactive' from London's O2 Shepherd's Bush Empire.
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Kings Of Leon's new album, Mechanical Bull, is available for pre-order on iTunes now.
American Express UNSTAGED is a first-of-its-kind, live and digital concert series that redefines and captures the journey to the live event. Created in partnership with VEVO and YouTube, we share exciting musical stories and performances from some of the world's most captivating artists.