Marco Antonio Muñiz Vega (born 3 March 1933) is a Mexican singer from Jalisco, Mexico.
He first acquired notoriety in the 50s as part of the trio Los Tres Ases, with whom he recorded many hits until he decided to embark on a solo career in 1960.
In 1965, he began an uninterrupted streak of years traveling to Puerto Rico's Caribe Hilton Hotel in San Juan around Christmas, to offer concerts there.
Muñiz has since returned for yearly shows at the Caribe Hilton, this time around Mother's Day.
His extensive solo career includes top 40 hit chart singles across Latin America such as "Voy a Cambiar Mi Corazón" by singer/composer Miguel Poventud.