El Reino Infantil is a musical group that creates songs for children. On their YouTube channel, they have more than 30 million subscribers and more than 30 billion views on their videos. Some popular songs on its channel are "La Vaca Lola", "Crocki Crocki", "La Vaca Lechera," "Susanita Tiene un Ratón", and more. Some videos are also popular in English on their corresponding channel, "The Children's Kingdom." Read more on Last.fm