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.
Walk the Moon / CHVRCHES / Flora Cash Dec 1, 2018 Chicago, Illinois, United States Uploaded by Eric Schander
Lollapalooza 2018 Aug 2 - 5, 2018 Chicago, Illinois, United States Uploaded by Raven
Walk the Moon / COIN Jul 31, 2018 Kansas City, Missouri, United States Uploaded by Emily Moreland