Armisen for Kings Of Leon streaming
Published 26/07/2013 | 16:18
The Nashville band's August 9 concert at London's Shepherd's Bush will be webcast globally on Vevo and YouTube, a spokesman for American Express said.
Armisen, who left Saturday Night Live earlier this year, is also a drummer and has previously directed music videos.
Kings Of Leon will release their sixth album Mechanical Bull later this year.