Just a funny idea I had while I was at work.... just read my "facts" and then you'll know what I am talking about.
Nirvana had an album before Nevermind.
Slipknot had a previous vocalist before Corey Taylor.
Slayer is not a Death Metal band.
St. Anger was probably one of Metallica's worst albums... you just didn't know they had material prior the Black Album.
Weezer is not heavy.