You were listening to Tontxu
? What?  8O  8O  8O  Tontxu.... the one who sings "una partida de risk, un trivial, un parchis, conquistaré tu pais..." That one?? 
haha yeah! A friend of mine studies in Salamanca and she sent the song to me a while ago. And Although I don't know much spanish (my spanish vocabulary consists of the words: 
si, La Bola de Cristal, adios and Louis van Gaal)..., I somehow like the song..., it's sweet..., and it's not even that hard to figure out what it's about!
Bilbao..., isn't that near the site where those Altamira caves are?