Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Overrated...Nirvana didn't kill 80s hair metal

Everybody keeps saying how innovative and creative Nirvana was and wrongly crediting them for "killing 80 hair metal". Well I've got some shocking news for you 80s hating Nirvana fans: NIRVANA DIDN"T KILL THE 80S HAIR METAL TREND!!! 80s hair metal didn't die when Nirvana released this album----80s hair metal died at midnight on January 1, 1990! Nirvana didn't release Nevermind until late 1991, almost two years after the end of the 80s. Hair metal was still around in 1990-1992, but that stuff was 90s hair metal, so you can't credit Nirvana for ending the 80s hair metal trend. That trend died all by itself at midnight on January 1st 1990. That is a full two years before Nirvana got popular.