Inuyasha: Twas a saturday night, and i was staying up flipping through channels when i saw the show. I fell in love with the ending song (My Will), and decided to just watch the show so i could hear that. When i saw episode 13 i fell in love with it and from then kept watching it.
Ayumi Hamasaki:

after watching inuyasha and falling in love with My Will i downloaded midis of the songs and fell IN LOVE with the Dearest one. It was just awesome. I went to my dads the following summer and downloaded mp3s of it and from then got into ayu's music.
Hikaru Utada: one of my friends was in love with her, but i personally never had heard her. So when i visited a mp3 rotation and saw her mp3 "Colors" for download, i didn't hesitate. Colors is my favorite song out of ALL the jpop i own now.
Gackt: I heard about him through one of the online tcgs. I didn't know what he sounded like, so when i saw his song "Tsuki no Uta" on a mp3 rotation i downloaded it. Didn't really love him until i heard "Last Song".
Namie Amuro: I'm a huge inuyasha freak

when i found out her song "Come" was one of the new endings i downloaded it and loved it.