"The night after Kurt Cobain died, I was playing in a church in Berlin. The emotion was palpable. I sang Smells LikeTeen Spirit. The next night, in Ireland, everyone started singing along just a few bars into it. I was so amazed, I had difficulty finishing the song. But they all carried on for me, singing in perfect reverence of his memory." Tori Amos recalls a couple of magical musical moments onstage.