There are two bands that have used the name Chelsea Grin:
These are photos from concerts where Chelsea Grin played, so they may be of other bands that played the concert as well.
Bloodstock Open Air 2017 Aug 11 - 13, 2017 Walton-on-Trent, UK Uploaded by Josh King
Vagos Metal Fest 2017 Aug 11 - 13, 2017 Vagos, Aveiro, Portugal Uploaded by La666
Chelsea Grin / Ice Nine Kills / Gideon / Enterprise Earth Apr 19, 2017 Tampa, Florida, United States Uploaded by Thecraigmoore