This is a beautiful song sung by Antonio Banderas from the Desperado soundtrack -- it's also available on Mexico & Mariachis: Music From And Inspired By Robert Rodriguez's El Mariachi Trilogy Amazon Link:
The close activity is easy to fill in: estrellas, cantar, guitarra, etc.
Warning: It does contain lyrics about tequila blanca, so you'll want to decide if that'll work in your classroom. I used it with Spanish 4s and they were fine. It's a great song that tells a story. Most kids have never seen or heard of Desperado, yet they recognized all the actors in the music video so that created interest in the movie.