There are at least 10 groups with the name H2O (including H₂O):
These are photos from concerts where H2O played, so they may be of other bands that played the concert as well.
For The Children 2014 Dec 13 - 14, 2014 Los Angeles, California, United States Uploaded by Felix Joel Garcia
Cock Sparrer / H2O / The Casualties / The Warning Shots Nov 28, 2014 Philadelphia, Pennsylvania, United States Uploaded by Kelly Anne
H2O / Ignite / Burst One's Inside / Hightower Aug 11, 2014 Paris, Île-de-France, France Uploaded by Zeta Kebab
Amnesia Rockfest 2014 Jun 20 - 21, 2014 Montebello, Quebec, Canada Uploaded by Vanessa Hébert
Groezrock 2014 - Day #1 May 2, 2014 Meerhout, Flanders, Belgium Uploaded by Zeta Kebab
Groezrock 2014 (Day 1) May 2, 2014 Meerhout, Flanders, Belgium Uploaded by I Loooose