I'm a soloist for now (until my other band gets some good material and ready to record).
I just decided one day to put on a solo side-project in which I play all the instruments. Yes. I am that insanely awesome.
I play live when I record (hey, I have to be alive to record it right?). Wow. That was stupid.
Stefan Lessard, Victor Wooten, Geddy Lee (Rush), Roger Watters, Les Claypool, Mike Dirnt, Bootsy Collins, Rick James.....the list can go on, but I shall spare your souls this time!
I use my bass, a free multi-track recording software, and a cheap mic. I beatbox all of my own drums, do my own vocals, and play my own music.
Anything? Check out my music. Even if it isn't serious, most people still find it extremely funny.