内容の如何を問わず、悲しげな曲なら

I Don't Ever Want To See You Again / Uncle Sam
Let Me Down Easy / The Isley Brothers
In My Bed / Dru Hill
You Can't Hold A Man / Ann Peebles
Holding Back The Years / Simply Red
I Can't Tell You Why / The Eagles
Love Is Thicker Than Water / Andy Gibb
Butta Love / Next

などが、私のおすすめです。