Hair bands had the saaaaaaaaame sound....the saaaaaaaaaaaame hair spray.......the saaaaaaaaame spandex look. I saw a GOOD documentary on VH 1 about 15 years ago and even Don Dokken of the band "Dokken" even said the routine grew tired and they ALL were guilty of going with the $$$$$ NOW . It opened the door to Grunge (%&^% YUK!!!)
And Rap..... Rap has all but eliminated the good harmonies of R and B. Every Rap song has the saaaaaaaaaaaame beat and rythym. I really miss the days of Earth Wind & Fire, Raydio, Cool & The Gang......GROUPS of people with MUSIC talent and not a bunch of "My life sucks and am pissed at the world" vulgar rhymes recorded with studio engineered "music".
SO......These days, it has all evolved into lip synced dance stuff with copy cat beats. Rock N Roll?? It's LONG GONE......well. mainstream anyway.