For posterity: Paul Simon's "Mother and Child Reunion." Based on the lyrics, it seemed the perfect choice:
Oh I would not give you false hope
On this strange and mournful day
But the mother and child reunion
Is only a motion away.
It's a nod to the sorrow and strangeness surrounding Elena's life, and also to the breakneck speed at which The Vampire Diaries resolves plots.
And then I had some coffee and completely changed my mind. Hence...
For posterity: "It's Raining Men" by The Weather Girls. To explain would be to over-explain, yes?