Faith No More, System of a Down, Korn and Helmet reveal group project

Turns out that hard rock heavy weights Faith No More, System of a Down, Korn and Helmet will be performing a single concert together. The announcement clears up what all four bands were teasing when they simultaneously uploaded a photo of an astronaut with the caption 'monday' to their respective social media pages last week. 
 The one-off concert will take place at the Banc of California stadium in Los Angeles on May 22. Russian Circles will also be performing.