There are at least five artists with the name Grayscale:
These are videos from concerts where Grayscale played, so they may be of other bands that played the concert as well.
Vans Warped Tour 2018 Jul 8, 2018 Houston, Texas, United States Added by Houston Hh
Warped Tour 2018 Jun 29, 2018 Las Vegas, Nevada, United States Added by Lauren Kittelson
Riot Fest 2017 Sep 15 - 17, 2017 Chicago, Illinois, United States Added by Mike Daly