Don Osvaldo

Don Osvaldo is a local rock band formed in November 2010 after the breakup of Callejeros on November 12 of that same year, led by Patricio Santos Fontanet. The band was initially called Casi Justicia Social, also known as CJS (from its initials, which abbreviated the name of the group Callejeros). However, on September 29, 2014, it was announced that the group would change its name to the current Don Osvaldo in homage to Osvaldo Pugliese.