That’s The Way Of The World (1975)
I remember going to see them in 1976 on the same bill as Isao Tamita at Manchester Free Trade Hall, they were brilliant and so was Tomita. They looked rather silly, even for those days! Dressed in crazy groovy clothing and with huge afro hairstyles: big Hair. But you couldn’t criticise their harmonious singing – pure brilliance.
Wikipedia: Earth Wind And Fire