Most of the music in "Days of Being Wild" comes from a CD called "Best of Xavia Cugat" (1996 Mercury Music Entertainment Co. Ltd.)

It turns out that Xavia Cugat They are a long-established Latin band in the United States. They have played many famous Latin-style songs. This CD is probably their best selection. "My Shawl", "Perfidia", "Siboney", and "Jungle Dreams" are included in this CD.

〈Siboney〉, 〈Jungle Dreams〉, 〈Maria Elena〉, and 〈Always in my heart〉 are all works by the famous Cuban Latin composer ERNESTO LECUONA, among which "Siboney" is the most famous. The music we hear in the movie is a tropical rainforest-style tune played by the band Xavia Cugat.

Another CD called "Always in my heart" was the second CD released in 1964 by LOS INDIOS TABAJARAS, two brother guitarists from the jungles of northern Brazil when rock music was popular in the late 1950s. CD is the dreamy Hawaiian music that everyone heard at the beginning of the movie. Their calm and sweet music is favored by people who are not used to the sound of rock music. Their first CD, titled "Maria Elena", is also one of the music from the film.