Jonas Hellborg is a wacky, innovative, schizophrenic Swedish bass virtuoso. He played with John McLaughlin in the 1980s incarnation of the Mahavishnu Orchestra, and has appeared on records with Ginger Baker (Cream drummer) and percussionist Trilok Gurtu. But his own projects are definitely the most interesting part of his output.

The guy is a rocker among jazzers, and a jazzer among rockers. He plays aggressive distorted bass guitar, subtle acoustic bass guitar, furious slap bass, and everything in between. He has released rather "difficult" - but enjoyable when in the right frame of mind - solo acoustic bass albums, an acoustic-bass-and-frame-drum album, rocking albums with vocals, keyboard/drums/bass instrumental records with the Johansson brothers (of Malmsteen's Rising Force), and incredible guitar-oriented releases with uber-virtuoso Shawn Lane and various drummers. Among many other things.