Colombian Vallenato Star Diomedes Diaz Dies At 56

FILE - In this Friday, May 15, 2009, file photo, singer and composer Diomedes Diaz waves after singing in Colombia's northern state of Cesar. Diomedes Diaz, the best-known performer of Colombia's accordion-heavy vallenato music, died Sunday, Dec. 22, 2013, at age 56. (AP Photo/Ricardo Mazalan)

BOGOTA, Colombia (AP) – Diomedes Diaz, the best-known performer of Colombia's accordion-heavy vallenato music, has died at age 56.

Fredys Soccaras, mayor of Valledupar, the city where the singer-songwriter lived, told Caracol radio that Diaz died Sunday of a heart attack after being rushed to a hospital.

From a poor childhood on a farm near Colombia's Caribbean coast, Diaz rose to become one of the top-selling artists of the musical genre revered throughout Colombia. He was honored with a Latin Grammy for best vallenato album in 2010.

Diaz was also known for his off-stage excesses, including a lifelong battle with drugs and alcohol and a conviction for trying to cover up the overdose death of a fan at his home.

His death came three days after he released a new CD.