Sergio Vallín Loera, born 26 May 1972 in Aguascalientes, Mexico, is a Mexican
guitarist, singer, and composer. He learned guitar at a local secondary
technical school and began teaching at 13 before forming the band Wando with his
siblings, which earned second place at the 1992 Bacardí Festival. In 1994, he
joined the Spanish‑language rock group Maná after an audition that screened over
80 candidates. With Maná, he recorded the studio albums Cuando los ángeles
lloran (1995), Sueños líquidos (1997), Revolución de amor (2002), and Amar es
Combatir (2006). In 2009, he released his f...