They are several artists named "Walk the Moon";
These are photos from concerts where Walk the Moon played, so they may be of other bands that played the concert as well.
Shaky Knees Festival 2016 May 13 - 15, 2016 Atlanta, Georgia, United States Uploaded by Josie Thompson
Shaky Knees Festival 2016 May 13 - 15, 2016 Atlanta, Georgia, United States Uploaded by Mgilberto1007
Lollapalooza 2016 Mar 13, 2016 São Paulo, São Paulo, Brazil Uploaded by Nearlywitch
Walk the Moon / Colony House Mar 5, 2016 Hamburg, Hamburg, Germany Uploaded by Melissah
Walk the Moon Feb 16, 2016 Amsterdam, North Holland, Netherlands Uploaded by Melissah