I was watching a live performance on a massive screen a couple of weeks ago... I could've seen actually seen them a few days before but I couldn't afford to. I've never seen such an energetic band.

Except maybe Arcade Fire.
I got their album for £3 in Fopp once upon a time. And this was at the time of their Mercury Music Prize nomination so I don't know why it was so cheap.
Their music reminds me of Sesame Street. You know when they went out into the streets to watch kids skipping and there'd be music playing in the background? Yeah.