Japanese rock music.
L'Arc En Ciel. Gackt. Malice Mizer. Glay. Miyavi. Gazette. Kaggra. Dir En Grey.
Here's a picture of Hyde (vocalist of L'Arc En Ciel) -->
Japanese female singers.
Utada Hikaru. Mika Nakashima. Angela Aki. Ayumi Hamasaki. Yuna Ito. Anna Tsuchiya. Olivia. Kawabe Chieco. Ai Otsuka. Bonnie Pink.
Japanese pop music.
V6. Arashi. Kat-tun. NewS. midnight Pumpkin.
~All the amazing songs in the intro and ending of animes. Listening to the music even if i don't understand the lyrics makes it less distracting. I actually get to hear the beauty of the song. The head-banging drums, the awesome guitar solos, the vocal range, and the other instruments that make them so unique. It doesn't hurt that some of them feature really kawaii (cute) musicians.