Steven Wilson is the lead guitarist/singer for progressive rock band Porcupine Tree.  

He is also half of No-Man (alongside Tim Bowness ) and also has other side projects such as the ambient Bass Communion, IEM, and the occasional release under his own name. As Bass Communion, he collaborated in the late nineties with Muslimgauze. Most recently, he has also released an album alongside Israeli Aviv Geffen called Blackfield. He also has an ambient collaboration with Vidna Obmana called Continuum. Recently he has also been producer, backing vocalist and pianist for Swedish metal group Opeth.

News and more information about Steven's projects can be found at http://www.nomansland.demon.co.uk/