Edgar R. Arjona Morales, known as Ricardo Arjona, is a Guatemalan singer-songwriter. Arjona is one of the most successful Latin American artists of all time, with more than 80 million albums sold. He is often called El Animal Nocturno (The Nocturnal Animal), thanks to his breakthrough success with his fourth studio album which bears the same name. His music ranges from ballads to Latin pop, rock, pop rock, Cuban music, and more recently a cappella performances and a mixture of Tejano music and Norteño music, and other Afro-American and Latin sounds. Arjona is noted for his lyrical style, and often addresses topics such as love, sexuality, violence, racism and immigration.