Okay, so I was going to do all the work to hack my 3DS and be able to do it all myself but I have 11.5.. So I don't have what's necessary.
So, if someone kind enough could help me, I have a small list of Pokemon I need!
@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