There are at least 6 known projects going by the name FM:
These are photos from concerts where FM played, so they may be of other bands that played the concert as well.
Download Festival 2011 Jun 10 - 12, 2011 Derby, England, United Kingdom Uploaded by Nova Gullen
Download Festival 2010 Jun 11 - 13, 2010 Castle Donington, England, United Kingdom Uploaded by Gwyn Williams
Whitesnake / FM Jul 29, 1994 Newport, Wales, United Kingdom Uploaded by Huwernie
Whitesnake / FM Jul 29, 1994 Newport, Wales, United Kingdom Uploaded by Gwyn Williams
Reading Festival 1987 Aug 28 - 30, 1987 Reading, England, United Kingdom Uploaded by John Collins