You know what they say about all good things in life. Samsung has been offering an ad-free version of its Milk Music service for no charge since launch, but the company has posted a new infographic revealing that Americans will soon have to pay $4 per month for a Premium tier to escape marketers. You'll also get some "exclusive features" as a bonus, although it's not clear just what they'll entail. We've reached out to learn more about both the paid service launch and what those perks will be. For now, you'll want to cherish the current listening experience -- it may not be around for much longer.