People like Spotify so much that they're willing to pay for it, even if they don't have to. The music streaming service has reached two million paying subscribers, reports Mashable. "Streaming music startup Spotify has added roughly 400,000 paying subscribers since its stateside launch." While the paid options offer ad-free streaming and mobile apps, for the first six-months Americans also get unlimited streaming with the free option. Given that the service only launched in July, that still leaves four months of freedom before Spotify imposes its 10-hour-per-month cap. Guess the service is just that good.