In case there's any doubt how awesome Tori Amos is, if you haven't seen it check this out. The first video has her show up at the mall-show of a 5th grade chorus that sings some of her songs and listen in, crying halfway through.
The second video has her leading the chorus and singing with them herself. The band teacher asks if she'll sing something and she says "Can they sing with me?" If only every celebrity was that cool.