I was just at the Celtic Women's performance here in Tampa and was in the second row, center. My father and stepmother treated my husband and i for Valentine's. Amazing seats!! I was not familiar with the group but I had heard of them, and within the first minute of the first song, my husband and I looked at each other and whispered, 'is this fake?' The short and the long of it, as I have read most of the posts above is yes they ARE lip syncing- you hear the difference when it is the recorded track and then they are truly singing when they aren't dancing around the stage and it's a solo or just two of them. When they are singing without any musical instruments playing loudly, yes they are truly singing- we could hear their voices a split second before it came on the speakers, and you could see the difference as to the throat muscles moving, etc. exactly what you read above in other posts. And the violin player (bad, I don't know their names, right? she is spritely little thing and who runs across the stage, playing her bow right over her long hair and the song sounds perfect. Um, sorry, don't by it. I feel like I saw her hands not moving in time to the song either, and I don't need to play the violin to think that.. the annoying part of this whole thing is, that this is what my husband and I couldn't help focus on!! My dad and stepmother loved it, maybe cause they couldn't see what we saw and need glasses, (NO insult meant to fans!) Listen, the girls are beautiful, it was entertaining, they sang Danny Boy for goodness sake! But as the Celtic Women, please call it what it is, a Great Show instead of trying to make it seem like a true singing performance. If you are gonna lie, do it better when ignorance can be bliss. ;)