Sig Ragga was formed in 1997 on Santa Fé, Argentina. They are known for fusing reggae with progressive and jazz elements, with songs occasionally interpreted on made up languages, and their vastly produced live performances. They have released three studio albums thus far: Sig Ragga (2009), Aquelarre (2013) and La Promesa de Thamar (2016). Members: Gustavo "Tavo" Cortés (vocals, keyboards)Nicolás Gonzalez (guitar, backing vocals)Ricardo "Pepo" Cortés (drums, backing vocals)Juan José "Juanjo" Casals (bass)