Enloquece comes from the verb enloquecer, which means 'to go crazy' or 'to drive crazy'. It's a powerful and dramatic word built from the adjective loco (crazy).
In this iconic song, Selena sings "Mi corazón se enloquece" (My heart goes crazy) to describe the intense, overwhelming feeling she gets when she sees her crush. It perfectly captures that out-of-control, electrifying excitement of new love, as if her heart has a mind of its own!
Have you ever seen someone walk by and felt your chest go wild? Selena Y Los Dinos nail that exact rush here. The whole track revolves around an onomatopoeia: "Bidi bidi bom bom" is simply the sound of a racing heart. Selena describes how her body completely betrays her whenever her crush walks past: "Cada vez que lo veo pasar, mi corazón se enloquece y me empieza a palpitar" [Every time I see him walk by, my heart goes crazy and starts to throb]. Reason flies straight out the window. Her heart refuses to think logically—"ya no razona" [it no longer reasons]—and she admits straight up, "no lo puedo controlar" [I can't control it].
It gets worse when he actually speaks. She sings, "Me tiemblan hasta las piernas" [Even my legs shake], which is such an honest, goofy confession of nervous excitement. The Spanish verb enloquecer literally means to drive crazy or make insane, but here it's purely playful: her chest isn't staying calm, it's basically throwing a party and singing back to her. It is an upbeat, delightfully silly track all about that sudden panic and rush when a crush enters the room.