I caught some of these guys on Palladia. They have this random guy who's entire performance is simply just running around saying "come on" "get up" "get ready", etc, etc.
[VIDEO]http://www.youtube.com/watch?v=kjgdJn2MPzA]YouTube - Pendulum - The Island (Dawn & Dusk) (Live at Reading+Leeds 2010) HQ[/VIDEO]
I caught a few songs, and while this isn't really my kind of music (at all), I ended up just waiting for their frontman to, well, actually do something. Every time there are vocals, their keytarist does them.
[VIDEO]http://www.youtube.com/watch?v=6x4S9_P8yAU]YouTube - Pendulum - Salt In The Wounds (Live @ Radio 1's Big Weekend Bangor 2010)[/VIDEO]