Just saw a KCAL 9 report the other day on stars who don't sing their concerts live, or who prerecord the majority of it. They targeted quite a few of the mega acts today: JLo, N'Sync, Britney, etc. They had a recording engineer (who used to work for Prince) show how they could make a singer's voice in the studio sound like it was live (echo, reverb, etc.). BTW, he said Prince sang and played every note in concert live, so don't worry. And the industry engineers who were interviewed refused to give anyone up specifically, but said "if there's a lot of dancing involved and you don't hear heavy breathing, it ain't live." I've always wondered how the Boy Bands do their dance whilst singing perfectly. I can't even play my guitar and sing well! When contacted, reps from Britney and the Boy Bands said "No Comment." And the shocker? Riverdance is prerecorded. However the producers said it's because it is nearly impossible to capture the sound of their feet live and have it sound good in the hall, so it's all prerecorded and the dancers just dance in time. Whodathunkit?