Oscar Marcelo Alemán (February 20, 1909 – October 14, 1980)[1] was an Argentine jazz guitarist. He was a singer, dancer, entertainer, and guitarist. Aleman was born in Machagai, Chaco Province in Northern Argentina on February 20, 1909. He was the fourth child of seven born to pianist Malcela Pereira (a native Argentine of the Toba people), and Jorge Alemán Moreira, who played guitar in a folk quartet, with his own children, Carlos, Jorgelina and Juan.