Maybe this has been posted before, but I just realized "Toki ga Bousou Suru" samples part of Mozart's "Piano Sonata No. 11 in A major, K. 331 - Andante grazioso"! I was watching LOST's episode 3x10 - "Tricia Tanaka Is Dead" when that Mozart's song started to sound as the BGM, and I was like "what?! Ringo on LOST?" hahaha!
Give it a listen (it doesn't allow me to post the video, idkw):
http://www.youtube.com/watch?v=Fe9-ck_KAR4