Another nice fusion is Celtic with Arabic/North African (let's not forget the Berbers), for some of the same reasons. There's a nice Cheb Mami tune on my iPod, Azwaw, with a driving beat and bagpipes (which originated in Africa, a factoid I never tired of pointing out to racist Boston Irish punks):
if you really want to blow their minds, show them this video
and then read them the definition of the word "irony". Hehe
btw, that Cheb Mami video is primo.