This year's our final year in school, and two girls junior to us are planning to sing and play the guitar at what we call the 'farewell' -graduation kind of thingy.

They're planning to do 'As Tears Go By'... and want another song. Any suggestions? Something sad... and maybe slow... and sentimental. Leaving-school-ish. Or not... just a song that makes you feel really sad, and makes you cry! Preferably not too unknown :-).