There are (at least) 3 bands sharing the same name:
These are photos from concerts where The Mustangs played, so they may be of other bands that played the concert as well.
The Mustangs at Barleylands - 22 July 2023
The Mustangs Jul 22, 2023 Billericay, England, United Kingdom Uploaded by Mister T
Blues At The Fort 2011 May 20 - 21, 2011 Portsmouth, England, United Kingdom Uploaded by A Badger Faced Man