Los Panchos? Sí! is an underground band formed in São Paulo, Brazil in 1994 by musicians Pó-de-mico, Sacolão and Ventilador.
For all those years, they have recorded more than 20 albums and have toured all around the world. By the end of 1994, Ventilador left the group. In 1995 many musicians have joined and departed from the band, being the most notable
Bombril and Lester. In the end of 1997, Gaudério, joined the band (at the time with Pó-de-mico, Sacolão and Lester) and this lineup remains unchanged since then.