The pachuco mambo is a Mexican-American craze dance music that alternated and combined Afro-American and Afro-Caribbean styles.Main stars of the genre are featured in this collection: Don Tosti, a Mexican-American composer from Texas, who moved to Los Angeles as a teenager, and Lalo Guerrero, from Arizona. Both of them were pivotal and created Mexican blues jump, that is, the pachuco mambo or boogie, which used rhythms of swing, boogie woogie, and rumba with lyrics in Spanglish and in Caló, the Spanglish language of the Pachucos. Tosti's "Pachuco Boogie", recorded in 1948, was the first Latin song to sell a million records.