La Vaca Lola is a traditional Spanish language children's song that has been taught in nurseries and primary schools across Spain and Latin America for generations. Its simple lyrics describe Lola the cow and repeat her moo, making it easy for young children to learn and sing. Recordings and animated versions spread widely on video platforms in the 2010s, turning the chorus into a familiar reference far beyond the classroom. It remains popular because parents, teachers and creators all recognise it immediately.