Los Cuates de Sinaloa are a Regional Mexican band led by cousins Gabriel and Nano Berrelleza, originally from La Vainilla, Sinaloa, but currently based in Phoenix, Arizona.The band signed to Sony BMG in 2006. Their 2006 album, Puro Sierreno Bravo, was number 13 in the Top Latin Albums.Their song "Negro y Azul" provided the opening music for the Breaking Bad episode "Negro y Azul".