T-Mobile Music Freedom allows T-Mobile users to stream as much music as you want on your smartphone from top streaming services, including Pandora, iHeartRadio, iTunes Radio, Rhapsody, Slacker, Spotify and Milk Music – and it won’t count towards your 4G LTE data plan. Today, they announced that they are adding Xbox Music to the list of available services under this plan. Music Freedom has been wildly popular since its launch this summer.

T-Mobile revealed that number of T-Mobile customers streaming music each day has jumped nearly 300%, and they’re streaming a whopping 66 million songs per day ? or roughly 200 terabytes of data per day. Also, In a recent survey of U.S. wireless users, 1 in 4 said that Music Freedom alone is a key reason they’ve switched or would switch to the T-Mobile.

Xbox Music Pass works on your PC, tablet, Xbox, the web, and your phone, including Windows Phone, iOS, and Android devices. Instantly stream songs or download them to listen offline. Your songs and playlists effortlessly sync across your devices so your music collection follows you wherever you go. You can sign-up for Xbox Music Pass here.

Read the full press release here.