Cookie & the Cupcakes were among the first to blend Cajun music with rock & roll to create the musical hybrid known as swamp pop. The eight-piece band reached its peak in 1959 when their lively dance tune "Mathilda" reached number 47 on the Billboard charts. Although they subsequently toured as the opening act for Jerry Lee Lewis and Fats Domino, Cookie & the Cupcakes mostly played in the Texas/Louisiana region, with many performances in New Orleans hotel clubs.