Sad Songs

I was watching a dismal episode of Without a Trace when a song came on, a song I liked a lot and remembered hearing. After a little google detection work I found it was Mad World form Gary Jules, which I’d heard in the final scene in Donnie Darko. It’s a great song and it’s uplifting in sad kind of way. I thought about some other examples and remembered Perfect Day by Lou Reed, Hallelujah by Jeff Buckley and Colorblind by the Counting Crows. The thing is, all of these songs I heard in movies and I caný seem to find any others. Can anyone help me out?