caption years_active image_size article_title landscape background genre image origin name
band logo 2010-2012 250 casi justicia social
 yes group_or_band argentine rock casijusticiasocial.jpg greater buenos aires , argentina casi justicia social
casi justicia social

casi justicia social -lrb- almost social justice -rrb- or cjs -lrb- according to its initials -rrb- was a argentine rock band formed on november 2010 , when patricio santos fontanet changed the name of callejeros , after their official separation on november 12 .
the band changed its name in 2014 to don osvaldo .
