In the wake of Taylor Swift clarifying her reasons for opting out of Spotify, the streaming service's CEO took to the company blog to offer a rebuttal. Daniel Ek says that "a top artist like Taylor Swift" can earn more than $6 million per year from the outfit, and that number only stands to rise. Of course, labels are the ones who arrange licensing agreements, so we can't be sure how much of the money is actually making it to Ms. Swift and her cohorts. Spotify on the whole has shelled out over $2 billion in royalties thus far, and its looking to be clear about how it works. "We will do anything we can to work with the industry to increase transparency, improve speed of payments, and give artists the opportunity to promote themselves and connect with fans," says Ek. "That's our responsibility as a leader in this industry; and it's the right thing to do." So where is that money coming from? Of its 50 million users, 12.5 million are paid subscribers, accounting for $120 each per year in monthly fees. Some quick arithmetic indicates that sum to be $1.5 billion, and the rest of the lot are generating revenue from ad-supported streaming.