Spotify is a system that allows you to play music and link the songs you've listened to, to social networks(facebook) which allows you to display to your peers that you are a hip, non-mainstream person who has an impeccable taste in music.
John:"Man I really want to get Becky's attention and I feel a great way would be to use Spotify so I can show her my virtuoso taste in music."
-Plays said music
Becky:"Awwwww, I just saw John listening to Taking Back Sunday, he is so in tune with his feelings. We should date."
They start dating and live a long life together filled with marriage, kids, a couple dogs, and an excellent retirement plan. John can attribute the inception of the relationship as well as his life long success directly to Spotify.