how many bands are like Fleetwood Mac?

[glitter_fades]

A lot of bands had more than one lead singer songwriter. These bands also had members who successfully went solo later, or had success in another group, or had solo success while staying a member of their group:

Beatles
Chicago
Eagles
Moody Blues
Genesis
Byrds
Pink Floyd


Just to name a few. There are a lot more. I think FM and Heart are the only bands with men and women where the women dominated the songwriting.