Which musician retired too soon?


There are a number of people who used to record and who people enjoyed that are no longer out there for one reason or another. People like Syd Barret or Cat Stevens come to mind.

I know there are a lot of people that I wish had retired, but who would you like to have seen continue in the music industry, that left already?
128x128nrchy
as all good things must change....alvin,theodore and simon reached premature adolesence and they're voices changed dramatically!
is it just rare that at this very time who should appear but the "bee gee's'?
hmmmm...
azjake
specifically excluding the dead folks:

delevante brothers - quit after 2 great records (n.b. bob d. folllowed with a so-so solo "porchlight")
john croslin - quit the reivers after stage fright problems
glenn mercer and bill million of the (presumably) late, lamented feelies

i'm sure there are a ton of others out there too.
Boy,these threads do go far and wide away from topic and I didn't know that retired and dead were synonymous.Not attempting to wade through all of the responses I didn't see Shuggie Otis's name. Now there is a guy that more or less retired before he was twenty.That's really early. Too bad for us. :^(