Before Stevie Nicks was the primary voice of Fleetwood Mac, there was this talented singer, songwriter, and musician who gave the band its distinctive sound and uniquely carved out style:
His name was Bob Welch.
He eventually left to go solo. He had a couple of decent releases, whilst the band went in another direction with Lindsey Buckingham and the women. Those who were not pleased with that direction, were able to enjoy that sound for a little while longer with Bob's solo work.
Here is one my favorite of his post-Mac days: