Three Souls in My Mind was originally composed of Alejandro Lora on bass and lead vocals, Ernesto de Leon on lead guitar, and Carlos Hauptvogel on the drums. On some albums they are accompanied by Arturo Labastida on saxophone and Carlos Martinez on trumpet. Sergio Mancera also played guitar on some albums. They released 15 albums on the RAFF record label before officially changing their name and lineup in 1985.

Three Souls was part of a burgeoning Mexican rock movement that had ties to rock's African American roots, the U.S. counterculture, and the then-globalizing recording industry. As rock in Mexico was originally seen as "inauthentic" when sung in Spanish, Three Souls mostly sang covers of American rock and blues songs in English. However, at the Festival de Avándaro, often called "Mexico's Woodstock", they crossed over, singing first in English, then in Spanish. From then on they recorded primarily in Spanish, writing most of their own songs. When asked why they switched to Spanish, Lora replied that it was important for the audience to understand the messages of the songs. While Three Souls had a popular following among the younger generation while singing in English, changing attitudes toward rock pushed the band to perform in the "hoyos fonquis", where the lower classes held semi-chaotic rock shows. Singing in his original language and for a new, energetic, young, and discontented audience, Lora's songs began reflecting more of the reality of the daily lives of average Mexicans, while simultaneously allowing concertgoers to forget those same troubles. Lora gave his own identity to Mexican rock & roll, becoming its emblem. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.