A Few Questions About sifow.

recently i've been listening to sifow a lot because of the reccomendations from people to listen to her. and i have 3 questions!

1. Her music is vey dancey, pretty + unique. so why doesn't it chart?!!!
2. What is a ganguro gyaru?
3. And does this ganguro gyaru have anything to do with her chart-failure?

i hope she does better in the near future, as she seems to have a big fanbase (now including me) behind her!

thank you! ..x