There are at least two artists with the same name:
These are photos from concerts where The Thorns played, so they may be of other bands that played the concert as well.
The Chicks (fka Dixie Chicks) / The Thorns Sep 19, 2003 Glasgow, Scotland, United Kingdom Uploaded by Marcel Burgstad
The Jayhawks / The Thorns / Carla Werner Jul 13, 2003 Omaha, Nebraska, United States Uploaded by Concert Archives Credit: © Omaha World-Herald