soulmate song

A soulmate song is a song that you are connected to. It is a song that you stumble upon and never forget. It is a song you could listen to on repeat for the rest of your life and it's the song you could marry. (there is only one soulmate songs, no matter how many songs you love, there is always one soulmate song)

"Dude please listen to this song, i think it's my soulmate song..."
"Then it must be good."