Background
Vallín was born in Mexico City, where he lived for the first ten years of his life until he moved with his family to Aguascalientes, capital of the state of the same name.
Vallín was born in Mexico City, where he lived for the first ten years of his life until he moved with his family to Aguascalientes, capital of the state of the same name.
Thus he has nicknamed himself "Hidrocálido", after one of the demonyms for his adopted city. Arriving in Aguascalientes, he had his first contact with music when he became part of a local student musical arrangement. At the age of ten he began to feel attracted to bands like The Beatles, The Rolling Stones, and The Doors.
At thirteen, he received his first salary as a musician, when he began to give private guitar lessons to other young kids in his same age group.
During a Luis Miguel concert, Sergio met guitarist Kiko Cibrián, to whom he gave a copy of his guitar demo. The demo passed from person to person until it reached Fher Olvera, vocalist, who was looking for a guitarist for the band after the departure of César "Vampiro" López.
Olvera was greatly impressed with Vallín"s style, and asked him to audition. Fher was very pleased with Sergio"s audition, telling Sergio: "eres un bombon asesino", meaning "he"s really good".
Vallín was chosen after trying out more than eighty guitarists and since 1994 has formed part of After a few collaborations with the band, doing covers of "Celoso" from Los Panchos and "Fool in the rain" from Led Zeppelin, recorded Cuando los ángeles lloran in 1995, the first studio album with Sergio as lead guitar.
The album Amar es Combatir is considered by many as being the best of, and was also a "point of inflection" in his career because of Vallín"s experience with classical guitar and because of rock and roll riffs on songs like "Arrancame El Corazon," "El Viaje," and "Bendita Tu Luz". Vallín has recorded four other studio albums Sueños Líquidos (1997), Revolución de Amor (2002), Drama Y Luz (2011), and Cama Incendiada (2015) as well as the Music Television Unplugged (1999).