To say Fleetwood Mac is one of your favourite bands is a little deceptive. They're unique in mainstream rock for having a revolving door of singers, songwriters and guitarists whilst their rhythm section of John McVie and Mick Fleetwood has remained consistent since 1968. And if you listen to their whole catalogue, it quickly becomes apparent that there's no less than four different eras of FM.
Blues Rock (1968-1970)
Experimental Pop (1971-1974)
Pop Rock (1975-1987)
That Awkward Period Most Long Time Bands Had In The '90s (1990-1997)
Anyhoo, here's one of my favourite tracks off of 1979's
Tusk