Alas de metal literally translates to "wings of metal". This beautiful and powerful phrase is a central metaphor in this song about resilience.
Natalia Jiménez sings, "Tanta guerra me dio alas de metal" (So much war gave me wings of metal), to express how her past struggles haven't broken her. Instead, they have forged her into someone stronger, giving her indestructible wings to fly high above any adversity.
Spanish powerhouse Natalia Jiménez kicks things off with brutal honesty: people told her she was completely useless and that even the air she breathes is a waste ("el aire que respiro está de más" [the air I breathe is one too many]). She describes feeling pinned against the wall ("contra la espada" [against the sword]), but instead of crumbling, she snaps right back. She uses the brilliant Spanish idiom "cero a la izquierda" [a zero to the left] when she sings "Eso del cero a la izquierda no me va" (That whole being a zero on the left doesn't suit me). In math, a zero placed before a number adds no value at all, so calling someone that means treating them like a total nobody. Natalia flatly rejects that label.
From there, the pop anthem turns into full-blown combat armor. She brushes off bullets and missiles, declaring that surviving all the fighting gave her metal wings ("alas de metal"). She refuses to crawl on the dirt ("Por el suelo no me arrastro nunca más" [Across the floor I will crawl never again]) and reminds everyone that she is not some clearance-rack discount ("aún no estoy de oferta" [I am not on sale yet]). The core message is fiercely simple: we are all unequal and original, and if someone hates that, she genuinely does not care ("a mí me da igual"). The worst moments are behind her, and shouting "Creo en mí" (I believe in myself) is her way of taking total control of the room.