O Muro de Pedra is a Brazilian rock band formed in 1998 in the city of São Paulo. The band's sound is a mix of classic rock, blues, and Brazilian folk music. They have released several albums and singles, including "Espero a Hora," "Virtual," and "Nossas Histórias." O Muro de Pedra has toured extensively throughout Brazil and has performed at major festivals such as Rock in Rio and Lollapalooza.