My twist on Andrew Zimmerman's saying, if the music sounds good, listen to it.
And boy do I like listening to international music just as I do English. I've only have been able to build up my list of songs that I like in French, Japanese, Chinese, and Korean (with a small lingering when it comes to Spanish,) however. I would like to hear more! I just don't know of any good artists in other languages (for the fact that I am not exposed to them as much.)
So any international music you have and like (German, French, Spanish, Brazilian, you name the language....or dialect,) post them (and keep posting them...please!) If you find a new song that you like in another language post them! I may find that I like them too!