LOL, smart man! Im sure they were, its just that Ive heard it before about lip synching etc, and it ticks me off sometimes, because people say that about everyone (ever since that Milli Vanilli incident LOL). Mairead is one of the best fiddle players in the world, no kidding, and the girls have been together for over a year and a half, Im pretty sure they have it down by now. I might believe the lip-synching theory if I could see it, but no way. Anyhow, kudos to the engineers and singers if they could pull it off. Watch close !