Magín Díaz is a Colombian musician and composer, best known for being the uncredited writer of "Rosa, que linda eres", a song about an unrequited love.

When the melody of "Rosa" gained popularity, the song was covered by other Colombian artists, and it was credited to distant relative Irene Martínez, for legal reasons (whose version with Los Soneros de Gamero was released in 1983).

During his life, Díaz spent time in Venezuela to perform with a band and to work on a construction site, but mostly lived in his hometown, Gamero, a small village near San Basilio de Palenque.

The double album, Magín Díaz y el Sexteto Gamerano, was released the same year on Bandcamp.

The traditional music is on the first disc, whilst remixes of his songs were on the second, encompassing a wide range of genres such as house, dembow and future bass.