Edgar Ricardo Arjona Morales (born 19 January 1964), known as Ricardo Arjona (), is a Guatemalan singer-songwriter. Arjona is one of the most successful and best-selling Latin American artists of all time, with more than 20 million records 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.