Firstly I agree with all the people before me.
My whole interest in Japan started with some Anime-series my cousin made me to watch..after that I was interested in Mangas and soon in Japan by itself. For me their life, culture, religion and language is really interesting. About one year ago my friend showed me j-rock and I just got caught. Of course I don't understand most of the lyrics, but the music succeds in bringing all the emotions to the audience by it's melody and intonation. You can feel the happiness, desperate, etc. even when you can't understand the lyrics. You can see that they enjoy what they do, love their fans and music and don't just make music, because they want to earn money. I never felt so much for music before. Music is my whole life (I play two instruments and I sing) and j-rock makes me happy every single day. I went through some hard times since I've known j-rock but it always helped me to go through it. It's kinda hard to explain but I have the true feeling that this music is different from other country's music. Also I feel a strong connection between me and the stars through their comments, tours, diaries, etc. which I didn't feel to many other western stars. I feel being noticed and needed as a fan for the band, what makes me happy.
Plus I made some really nice friends through this music who helped me a lot so far and who give me the power to go through difficult times. I'm really thankfull I discovered j-rock.