Casi Justicia Social (Almost Social Justice) or CJS (according to its initials) are an Argentine rock band formed on November 2010, when Patricio Santos Fontanet change the name of Callejeros, after his official separation on November 12.
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Late in 2010, after the dissolution of Callejeros by internal problems caused by the events happened in República Cromagnon and subsequents problems to the justice and victim's families, Patricio Santos Fontanet announced the formation of Casi Justicia Social with some ex-members.
Some of the acts performing in the 2007 edition included Andrew Tosh, Gondwana, Ratos de Porao, Hereford, Babasónicos, Attaque 77, Las Pelotas, Rata Blanca, Kapanga, Intoxicados, Las Pastillas del Abuelo, Callejeros, Carajo, Almafuerte, La 25, Los Pericos and others.
They also appeared in the soundtracks to films such as Deprisa, Deprisa, Perros callejeros, and Dias contados.