The perfect song + the perfect action = the perfect scene. After that, you can't use the song in any other movie because it's so indelibly imprinted into the world's mind. Any attempt to do so makes you an idiot director.

Some examples:
Tears For Fears in Donnie Darko

Goin Out West from Fight Club

Georgia On My Mind from Quantum Leap

But, like any game, there are rules. No Tarantino, no Scorsese, no Wes Anderson, no music written specifically for the movie. Full rules here.