Brony714
My own evil twin...
Every era has had their crap.....but for my money? It would be 1989 to 1991.
People often wonder: Why was it that some random band out of Seattle (Nirvana) would suddenly become so incredibly popular with their sophomore album and completely change the face of popular music in one fell swoop?
Answer: Because the stuff that was topping the charts at that point was AWFUL. You know all of that sappy, saccharine and soulless Adult Contemporary garbage you hear at the grocery store? THAT was what was charting then. Oh sure, you'd have some occasional gems (old Celine Dion could be listenable), but that was it.
Oh, and don't get me started on the modern rock scene at the time. Sure, you had stuff like R.E.M. and Metallica, but other than that it was the slow, salty death of the Hair Band scene. The whole hair metal genre had become so formulaic and over-saturated that it really had no choice but to die. First everyone was all glammed out, then started toning it down and looking more fasionable, then everyone started going acoustic, and finally it just died.
Something else you forgot to mention about hair metal is the fact that around that time, it seemed like with the possible exception of Guns 'N' Roses(IMHO, Use Your Illusion I & II contain the band's best work, despite the fact those albums began Axl Rose's descent into d*******g mode), every other song was about sex(it's painfully obvious that when Warrant wrote "Cherry Pie", they weren't thinking with their stomachs...)... and it wasn't just hair metal, for example, the subject of "I Touch Myself" by Divinyls is so obvious, a blind man could see it in a darkened room...