The Mars Volta released Noctourniquet in 2012, and broke up in 2013; there hasn't been new music from the band since, but that may be about to change. Producer and Cloud Hill Recordings founder and owner Johann Scheerer posted a cryptic Instagram story last week teasing dates (June 19-21) and coordinates that pointed to Los Angeles' Grand Park. The band posted it too, and fans who have gone in person have been greeted with a cube: