There are at least two bands called Cretins or The Cretins: One is a German early 80s punk band from Hannover. The other one is a an American Pop Punk Band which started to perform in the 90s.
These are photos from concerts where Cretins played, so they may be of other bands that played the concert as well.
Groovie Ghoulies / Buck / Cretins / Dimestore Halos Jun 1, 2000 Cambridge, Massachusetts, United States Uploaded by Spotboslow
