There are at least three known artists with this name:
These are photos from concerts where NIKI played, so they may be of other bands that played the concert as well.
Coachella Valley Music & Arts Festivals Weekend 1 2022 Apr 15 - 17, 2022 Indio, California, United States Uploaded by Nathan Mansur
Coachella 2022 Apr 15 - 17, 2022 Indio, California, United States Uploaded by Erin Crosby