What is the name of the Drummer with the long brown hair, beard and mustache from Celtic Woman?

i don't know the band but from what i've heard, it only has vocalists and a violonist. Celtic Woman is a musical ensemble comprised of five Irish and one New Zealand female artists: vocalists Chlo� Agnew, �rla Fallon, Lisa Kelly, M�av N� Mhaolchatha and Hayley Westenra, and violinist M�ir�ad Nesbitt.