What's the most emotional/invigorating song/piece you've ever heard?

What music has either made you feel maybe emotional, (sad, wondering, romantic, happy). Some songs that I have a bond with and are really emotional for me are Louis Armstrong's "What a Wonderful World", or Beethoven's "Moonlight Sonata". Also, not just popular music, but orchestrated or symphonic (clical) stuff will do as well.