Doobie Brothers, but he has had more than enough of a solo career since then. And he is one of the finest backup singers ever. The stuff he did with Steely Dan is legendary.
More recently he released a bunch of Mo-Town stuff which was pretty good, but his solo stuff is amazing.
92 posted on 02/05/2010 8:26:30 AM PST by thefactor
(yes, as a matter of fact, i DID only read the excerpt)