The British dance pop band Friendly Fires appeared on Jimmy Kimmel Live's outdoor stage in Los Angeles yesterday to perform an energetic, rhythmically dense version of "Blue Cassette," a track from their latest album Pala. Singer Ed Macfarlane has a sweet, boy-next-door look, but he's surprisingly magnetic and animated, working the oversize stage like a seasoned arena pro without compromising his earnest, highly emotional vocal performance.