well i REALLY love vocaloid and i tend to pretend to be hatsune miku on most servers XD ._. and sometimes mikuwars But i must say Miku and luka are my two fav artists if you count vocaloid

Anything released by Monstercat really.

idk
don't kill me but most of the stuff i listen to is vocaloid, but i only like the 'creepy' (eg. i'm only just getting started, shinitagari, anything by nashimoto-p or that isn't 'kawaii desu miku') or vocarock (niki especially) and utata-p's stuff. hachi and jin's (kagerou project) music are also good.

also i really like anime osts like attack on titan and puella magi madoka magica.

and a few things on the radio are good.
not one direction etc tho.

favourite artists-
niki (example: http://www.youtube.com/watch?v=sWnnRN6KtM4, that song tore me into pieces by the way)
mikito-p (example: oh god this one did too http://www.youtube.com/watch?v=AowEa0BXtus)
hachi (example: http://www.youtube.com/watch?v=qnX2CdOBcDI)
i also like 'normal' stuff like paramore, imagine dragons, fun. etc.

I just love death metal and metal in genral. i also like goregrind but i cant post any such band here XD my favorites include, Lamb of god, bloodbath, behemoth and Nasum

I like Eminem and only some songs of Skillet.

I really like 70's, 80's, and 90's pop. My favorite artists would have to be Michael Jackson and "Weird Al" Yankovic.

Edm, haywyre is one of my favorite artists.

Vocaloid and JPop

My favourite artist is https://www.youtube.com/user/samsynthis