the worst bands are the ultra pop ones. Such as backstreet boyz, britney spears, kelly osbournes nasty attempt, etc. Anything solely created to make money usually isn't good.
actually the true emo band is Jimmy eat world and Rumah sakit.(only remember 2) this is the emo band before emo was explode and being bastardise by many stupid pop rock band that called themselve emo (like MCR)
Anything on the billboards pop and definitely boy bands. Not all rap is bad... only the ones in the mainstream (according to my preferences)
I dislike bands, and singers who are generic. What I mean by generic is that one band or singer sounds just like another band or singer. It seems there is a lot of that today. It would be nice to hear more unique stuff. I know some songs will sound similar by coincidence, but they still have some uniqueness to it.
i hate cutie boyband music!!! wtf im listening to a band called Slayer right now and its killing me!! i hate my fiance everytime he played the death metal music. oh i love reggae music! yo man!
my all time favorite and best drummer ever, check out his drum solo http://www.frogengine.com/blog/the-best-drummer-in-the-world/