There are at least three artists under this name. 1) Headcrash is a German Alternative Crossover band, which mixes guitars and electronic programming.
A short biography can be found Here:
http://www.deutschmusikland.com/bands/headcrash.php 2) Headcrash is a goregrind / grindcore band 3) Headcrash is hardcore techno producer Daniel Rombold. Released at Test (PCP sub-lbael). Aliases: Akira 101, The Blade Runner, he is also member of Industrial Terror Squad.

Read more about Headcrash on Last.fm.