Untz, untz. T-Mobile's new announcement is going to make your heart sing, music junkie. T-Mobile Music Freedom [2] is setting listeners free by allowing unlimited music streaming without it counting against your monthly data limits. That's right, listen to all the Macklemore (if that's your jam) you want — even off WiFi — without worrying about your plan. Maybe now you can finally get away with the cheapest plan!

Here's what you need to know:

• There is, of course, a catch. T-Mobile's promotion is limited to Rdio, Grooveshark, Songza, Pandora, iHeartRadio, iTunes Radio, Rhapsody, Spotify, Slacker, and Milk Music.
• If your favorite app isn't included above, vote for it here [3].
• T-Mobile already offers unlimited data but only limited, superfast 4G LTE data. Music streaming won't count toward your 4G LTE data cap.

Source: T-Mobile [4]

But not everyone is on board. T-Mobile's new program offers preferential treatment to some types of data over others, which is not in line with the concept of net neutrality [5]. It's the idea that Internet service providers shouldn't discriminate against certain types of data — in this case, music streaming from the providers not partnering with T-Mobile's Music Freedom plan, like Rdio and Google Access Music. Net-neutrality activists don't think that providers like T-Mobile (and its parent company Deutsche Telekom) should pick an industry's winners and losers.

Regardless, the plan is great news for music-lovers who can't get on a WiFi network and love to stream their favorite jams. If Music Freedom sounds so good that you want to switch, T-Mobile will even pay your early termination fee [6]. Happy streaming!