The first group to become known outside of Angola was Duo Ouro Negro, created in 1956. After a successful sting in Portugal, the duo toured Switzerland, France, Finland, Sweden, Denmark and Spain. After them came Orquestra os Jovens do Prenda, who were most popular from the late 1960s to the early 1970s and have continued to perform and record sporadically. The big band included two trumpets, a saxophone, four guitars and a half-dozen percussion instruments. They played kizomba (a native style based around the marimba xylophone), using the four guitars to approximate the sound of the marimba, and quilapanga. Besides that early 60s until late 70s some other groups like Kiezos, Negoleiros do Ritmo, Cabinda Ritmos, Super Coba, Ngoma Jazz, Africa Show, Ases do Prenda, Aguias Reais, Bongos do Lobito, etc. were the main bands in Angola playing Angolan music before Angolan independence on November 11, 1975. These groups were based in Luanda, and Lobito in Benguela province.