Basque song, sung not only in football pitches but in the whole Basque Country. In this case it was sung in Anoeta. Beautiful song.
Lyrics
If I had cut his wings, He would've been mine, He wouldn't have left, But, that way, He wouldn't have been a bird, But, that way, He wouldn't have been a bird, And I!, I loved the bird, And I!, I loved the bird, Lalalalalalala...