Riot Propaganda is a Spanish rap supergroup born from the union of Valencia's Los Chikos del Maíz and Madrid's Habeas Corpus. Both crews were known for their politically aggressive stance, so it was only natural for Riot Propaganda's music and lyrics to redouble the anti-establishment message. The project's first effort, United Artists of Revolution, appeared in 2013. The second installment, Agenda Oculta, didn't arrive until 2017.