If you are a U2 fan, you already know how popular and legendary Joshua Tree album is. It's,without doubt, the most favorite album album among U2 fans. I love Achtung Baby better but that's not the point of the post. Now imagine what would have happened if "Spanish Eyes" had replaced "Mothers of the disappeared". Sadly, it wasn't the case. Spanish Eyes was sidelined to B-Side. What a shame!