Here´s a sample of uruguayan murgas. I saw two of these murgas in my city. They inspired also some rosarine ones, as for example "Caídos del puente". I must be great to be in Montevideo in times of the llamada!

Agarrate Catalina "Celulosa"
Falta y resto "Anarquía de carnaval"
Araca la cana in the street