Gustavo A. Santaolalla is an Argentine musician, producer and composer whose musical style frequently combines elements of rock, soul, African rhythms and Latin American folk. His started his professional music career in 1967 with the group Arco Iris.
In the late 1990s he transferred his efforts to film soundtracks, producing albums for the films Amores Perros, 21 Grams and The Motorcycle Diaries.