La Caution is an experimental hip-hop band formed by two brothers from Noisy-le-sec, Nikkfurie and Hi-Tekk. Their lyrics are greatly influenced by stream of consciousness writing, Philip K. Dick and the movie "Fight Club". Their sound is very electro and they've collaborated frequently with similar-minded bands like TTC.
Collaborators are known as "Les Cautionneurs" and include Izno, Saphir le Joaillier, 16S64 and DJ Fab.
Their bilingual online store can be found here (it's cheaper than Amazon and they ship worldwide).