No videos yet, but here's an old one. Not quite as moving as the the performance for O, but still good. She's a stunnin' wee ting.
Just ran across this. For those with the patience to sit through the mumbo jumbo, this is cool to see some of the first rehearsals of said song, interspersed with the finished green-ified product.
Speaking of O, I think I had one at 4:21 of this video. That note's a killer.