John is a mononym used by a numerous number of artists, some of them actually named John, some not.
These are photos from concerts where JOHN played, so they may be of other bands that played the concert as well.
JOHN / Polevaulter Feb 8, 2020 Coventry, England, United Kingdom Uploaded by Andy Wilkinson
Polevaulter / Dead Naked Hippies / JOHN Feb 5, 2020 York, England, United Kingdom Uploaded by Davrob