There are millions of people who consume music illegally every month. Just getting them into a legal service will make the music industry way bigger than it's ever been before.

In general, people are comfortable sharing their music. There are two exceptions, though - Lady Gaga and Britney Spears.

With Spotify, people don't get it until they try it. Then they tell their friends.

At the end of the day, I want the music industry to be larger than what it is today.

I was deeply uncertain of who I was and who I wanted to be. I really thought I wanted to be a much cooler guy than what I was.

In order for a service to be social, you've really got to start from the ground up. The fact that almost a third of the U.S. population have even heard of Spotify is really because they've seen it on Facebook and friends have been sharing.

The main reason people want to pay for Spotify is really portability. People are saying, 'I want to have my music with me.'