First, listen to Susan:
http://mashable.com/2009/05/24/susan-boyle-memory/
http://www.nytimes.com/2009/05/25/business/media/25youtube.html?hp
After listening to the following version of "Memories" from Cats by Sarah Brightman
http://www.youtube.com/watch?v=F2PLC0EHkvQ
after you listen to Susan. Both are great to bring tears on a leafy, sweet, Memorial Day morning in Cincinnati.
Susan takes a while to get into it; Sarah nails it from the start on this, my favorite song.
Read the excellent comments after the Susan Boyle clip.