I saw Celtic Woman in concert, and it simply didn't look to me like the violinist was really playing. I can't explain it, but there was just something off in her bow strokes. Also, I just don't believe that someone can dance around like that yet have the stability and control necessary to play the violin well. Even with my shoulder rest, I doubt that I could play through one song while slightly hopping in place, much less dancing around. Admittedly I'm not as good as the Celtic Woman violinist, but I do have some experience, and I just don't believe it. I'd have to not only see it, but see it up close to believe it. If there were several violin experts, virtuosos who weighed in and told me that it was possible, I might be swayed, but not from the show I saw.