Atari Teenage Riot are best remembered for their crazy live shows. You can see some of this in the video from the 2010 Fusion Fest. And you can see more in the video for Activate (video above). If you want a version of the song you can download it at Soundcloud.
The band will also be heading out on tour through North America this call with Autoerotique (I do not link to them because their site is a reported attack site by Firefox).