What's this spanish song called?

everytime i go to a quince, they always play "oye mi amor" by mana..and some other one...not by mana but it's really common. it's not corridos, it's like a rock spanish song, it goes something like this "llave de mi corazon....que no me pidan" it's goes kinda fast..it has a beat to it!! im dying to know this song >.<