Óscar “El Gallo Copeton” Martínez (born January 3, 1934 in Corpus Christi, Texas) is an American musician and songwriter of Mexican descent who performs Tejano, slow rock, polkas, cumbias and English tunes.
Known to Tejano Music devotees as "El Tejano Enamorado", after the title of his song which was a hit for Isidro Lopez in 1954.