Spanish emo style female singer

[AllYourBase]

I have just returned from a four weeks visiting some European and Spanish cities. Everywhere I went there was a song playing on radios, MTV etc which is clearly very popular and probably a current mega chart hit. I have also seen it on Belgian and German MTV too, in the past 4 weeks, so it must be a European success too. It is in Spanish, by a female singer, in an emo, chick-rock genre along the lines of Avril Lavign, MIchelle Branch type style.

I know it's not much to go on, but AB has always managed to find the needle in the haystack for me before. I'd love to DL a copy, but don't know where to start. Anyone got any suggestions of what it might be?