Casco literally translates to "helmet". It's a word you'd use for safety gear when riding a motorcycle or bicycle.
However, in this song, Rauw Alejandro uses it as creative slang for "head" in the phrase "me vuelve loco desde el casco hasta los pedales" (she drives me crazy from the helmet to the pedals). This unique metaphor, comparing a person to a vehicle, is a fresh and modern way of saying "from head to toe".
Puerto Rican artist Rauw Alejandro delivers pure infatuation in this reggaeton hit, obsessing over every single detail of someone he loves. The title literally says it all: "me gusta todo de ti" (I like everything about you). He builds the vibe around coastal, sun-drenched imagery, singing that she matches the ocean ("Tú combinas con el mar") and looks incredible in her swimsuit ("Ese bikini se ve fenomenal"). There is an easy, romantic contentment in lines like "Ya no tengo nada que buscar / Algo fuera de aquí" (I don't have anything left to look for outside of here), mixed right alongside the physical rush that makes his heart race ("Aceleras to' mis latidos").
He balances that sweet seaside romance with flashy, modern flexes and sharp slang. When he sings "Quinta avenida, no va pa'l mall" (Fifth Avenue, she doesn't go to the regular mall), he nods to high-end shopping, matching it with her Chanel wallet ("chanel su wallet"). He drops Puerto Rican slang like "un teco" (an addict or someone completely hooked) to joke about how obsessed he is, and plays with beach aesthetics right down to her coconut shampoo ("champú de coco"). It is playful, stylish, and direct about loving someone from head to toe—or, as he puts it, "desde el casco hasta los pedales" (from the helmet down to the pedals).