carambolage /kaʀɑ̃bɔlaʒ/ (noun, french) : pileup
Music festival usually base their communication around their headlining acts. Carambolage Festival wants to change the status quo : its lineup and communication are based around a theme (ie, a color), different each year. The names of the artists are kept secret until the last minute, to create a buzz around the event.
For its first year, Carambolage has chosen the color red (potential acts : Red Hot Chili Peppers, Red Army Choir, Red Sparowes...).