Found this on a web site! Must have been taken by a professional who did not have a pint sloshing around in the other hand!
This is not the concert I attended, but it sure looks like it. The Roadie is in the strips and no hair on left. Omega and I think the one on the right (his back to us) who just stood on a little platform and danced and played the tambourine and sang back up, was their un-employable cousin from Tuam. The family begged them to take him on.