J-Pop
Toshira Masuda - Naruto soundtracks, for the anime, great music, using traditational, and modern instruements.
Rika Matsumoto - Did the pokemon theme entitled, OK! And most of the other good tunes featured in pokemon.
Various Artists - For the pokemon soundtracks, in the japanese versions of course...some of them had good tunes.
Akeboshi - Did the ending theme for naruto season 1, which was an amazing song!
Hironobu Kageyama - Another good dbz artist.
Hiroki Takahashi - Did some cool dbz songs also!
Modern Orchestra
Howard Shore - Great composer, bigh highlight was the lotr soundtracks.
John Williams - Another great composer, highlight was the harry potter soundtracks and the star wars trilogy soundtracks.
Klaus Badelt - Good too, did the pirates of the carribean soundtrack which was amazing!!!
Rap
Beastie Boys - Some may put them under another category, but they are primarily rap, and I like em.
Eminem - You have all heard him, no need to descripe him!
Lords of the Rhymes - What more can I ask for?
Rock
Metallica - Who doesnt know these guys either? Most people like em too.
The Darkness - I Believe in a thing called love, XD
Kiss - Shout it out loud, thats the only song I really know of theirs, but they got some other good ones, just cant quite remember them.
Ozzy Osbourne - Hes got some good ones, crazy train...etc. ^_^
Metal/Jumpers
System of a down - Good thrashers, good beats!
Linkin Park - Their fame has really died down in the past years, meh, I still like them.
Summoning - Does lords of the rings themed songs.
Rasmus - Thanks for introducing these guys to me bael!
ICP - I only like the song, homies, and lets go all the way..lol.
Punk
Refused - Great screamer/hardcore/thrasher punk
Transplants - Another side project of rancid, anything from these guys is good :D.
Nekromantix - Pyschobilly, good stuff.
Gob - A bit poppish, but I like them.
Horropops - Pyschobilly as well, gotta love these guys/girls.
Misfits - Monster punk basically, good stuff also.
Mad Caddies - Regga punk almost, its really god.
AFI - Awesome band, # 2 on my top 5.
Bad Religion - Frontiered punk with a beat, in my opinion.
Anti-Flag - Great band, anti-bush, so they are one better.
NOFX - Those guys are crazy, thats all I have to say.
Rancid - Regga punk, gotta love it!
Hot Water Music - They got some good ones also. Emo.
Lars Frederiksen And The Bastards - Rancid guy who left and started his own band.
Operation Ivy - Awesome! They split up and formed later with rancid.
Guttermouth - Funny tunes here!
Millencolin - Swedish punk rockers, amazing!
Pennywise - Another anti-bush/war band.
Alexisonfire - Scremer band, good stuff.
My Chemical Romance - My Musical Romance....XD
Sex Pistols - God save the queen, the facist regime!
Dead Kennedys - Give me convience, or give me death. These guys got funny music too.
The Clash - London Calling! Rockin the casbah, gotta love these guys!
Dropkick Murphies - Bagpipes + Punk = Awesome!
Alternative
Coldplay - Good stuff here. Lol, not too much to say.
Lenny Kravitz - His songs always have an awesome beat!
Modest Mouse - My absolute favorite band, they are so mellow!
Cruxshadows - More gothic type music, I recommend you check them out, its like darkwave.
Sublime - Green music, XD.
Avril Lavinge - Not bad music here either, pretty **** good in my opinion!
William Hung - Novelty music, thats all. XD Some of its not thaaat bad, but its pure novelty I assure you. ^_^
CKY - Good stuff here, got intrested from jackass the movie basically. Flesh into gear, and plastic plan, good ones.
Techno
Daft Punk - Love the song with the dog, da funk. XD
Various - Most star wars remixes are awesome!!
Sorry for not posting every song title, there was just too many too pick, and my post is long enough already! XD