I know we're all big fans, that's actually the reason I've asked.  
Another JPop and fans related little story I just remember:
Just recently I bought some tickets to a Volbeat concert with an old friend. And when I said, that I wanted some good seats to see the stage properly, she laughed at me, cause she thinks. it's the live music you're going to the concert for. 
Really had to think about that afterwards, lol.
We JPop fans are really spoiled fans.