Are you just finding out about Deadmau5 now? This guy (he is only like 27/28 or something) is amazing with electronic music... I didn't really like that kind of stuff until I saw him spin at Ultra Music Festival in Miami, March 2008. I've also gone to Cielo and Webster Hall shows, too. And yes... he's got a sound-interactive mousehead he wears now and again during his sets. Oh and... Deadmau5 will be here in NYC around Thanksgiving. :-)