For their album Destiny! under Best World Music. Such wonderful news, www.grammy.com/nominees Hope they win it! Wonder if they get to perform at the Grammy's upon winning. Well deserved, and that album Destiny is one of their best, nice new direction with a few songs, but really composed and complete by itself.
Only the most popular categories perform on the Grammy's... or, at the very least, the only ones that are shown on TV. Josh Groban is also nominated for his Stages Live album, but it isn't likely he'll perform on the show because of it. He did perform on the Tony awards last year, although I don't think his album was nominated for that, it's just because the theme of his album fit.