Same problem here. Freezes exactly in the same point. The wii crashes and stars to emit a kind of buzzing sound.
I'm on a 4.3E (Wan) and i'm using the latest version of the USB loader GX.
I fixed the other crash problem (at the beginning just after the tutorial) by installing the ciosx rev20b...
@Xdqwerty, to answer your question, they're a fusion Brit-pop/J-pop/electronic band with a woman vocalist. Flamingo is hands down their best known song but they've got a ton of other really good songs