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.
H2O / Saves The Day / For The Living Apr 27, 2000 Washington, D.C., United States Uploaded by Michaela Morgan
H2O / Saves The Day / Kill Your Idols Mar 17, 2000 Detroit, Michigan, United States Uploaded by Mark Culpepper
H2O / The Bouncing Souls / The Casualties / Vision Nov 26, 1999 West Palm Beach, Florida, United States Uploaded by Cdarby6
H2O / The Bouncing Souls / The Casualties / Vision Nov 19, 1999 New York, New York, United States Uploaded by Denial Omega
H2O / 99 Cents / Cooter / Kill Your Idols Oct 1, 1999 Poughkeepsie, NY, US Uploaded by Erica Lebow
Vans Warped Tour 1999 Jul 27, 1999 Washington, D.C., United States Uploaded by Tim T
Vans Warped Tour 1999 Jul 25, 1999 Pontiac, Michigan, United States Uploaded by Daniel Sylvester
H2O / Hoods / Powerhouse / Kill Your Idols Sep 21, 1998 Sacramento, California, United States Uploaded by Sacramento Shows
Vans Warped Tour '98 Jul 19, 1998 Lawrence, Kansas, United States Uploaded by Joeyirsik
Warped Tour Jul 19, 1998 Lawrence, Kansas, United States Uploaded by Murphy59
Ozzfest/Warped Tour 1998 Jul 18, 1998 Somerset, Wisconsin, United States Uploaded by Bruhvvmetal
Ozzfest/Warped Tour 1998 Jul 18, 1998 Somerset, Wisconsin, United States Uploaded by Primus913