Listen to La Unica Arrg (Morena Sinfónica) online. La Unica Arrg (Morena Sinfónica) is a Spanish language song and is sung by Spice Burger. La Unica Arrg (Morena Sinfónica), from the album Divas, was released in the year 2015. The duration of the song is 2:42. Download Spanish songs online from JioSaavn.