No offense to Madonna but......

You can take someone with a decent voice, put them into a studio, lay down as many tracks as you want and make them sound pretty good. (See reference to Madonna above). I realize that she is a superstar and that her live shows are legendary. I confess to never having seen one but I've seen some videos of her live shows and it's a lot of flash and dash. For me, this video of Jason Mraz in Korea is what live music should be about whether you're a classical, jazz, acoustic, folk, celtic or any other type of musician. When you sound this good on stage with just two voices and two instruments then that, my friends, is music!