Valorarte combines the verb valorar (to value or appreciate) with the pronoun te (you) to express the act of recognizing someone's true worth.
In the lyrics, the singer tries to win a girl over by pointing out that her past partner didn't know how to valorarte (appreciate you). It is an emotionally charged word that beautifully demonstrates how Spanish seamlessly attaches pronouns directly to the end of infinitive verbs.
This song is a straightforward invitation for a late-night hookup. Cris Mj tells a woman, "llama después de la una" (call after one), because as he sees it, "como tú no hay ninguna" (there's no one like you). He's not shy about what he wants, promising her a wild night and a better experience than she had with her last guy, who "no supo valorarte" (didn't know how to value you).
The whole vibe is about a flashy, hedonistic lifestyle. The artists mention cruising in a nice car ("la nave") in Miami, Medellín, and even Las Condes in their native Chile. It's a party scene filled with confidence and explicit desire, with lines like "Voy a chingarte bajo la lluvia" (I'm going to f*ck you in the rain). It's a classic reggaeton theme: the singer positions himself as the exciting, powerful guy who can give a woman the thrilling night she's been missing.