Britney Spears' 'Glory' Bonus Track 'Mood Ring' Goes Online

(Radio.com) Britney Spears' Glory sold 110,000 units in America in its first week and enraptured fans around the globe. Bona fide Britney fanatics may think they've heard every track from this chapter of her career, but there's more.

DJ Mustard helped Spears record a song called "Mood Ring" which didn't make the cut of Glory's U.S. version, but appears as part of the album's Japanese package. At last, we can listen to the material DJ Mustard bragged about last year, and it's pretty great.

The atmospheric track blends Spears' voice with a moody electro-pop arrangement. Intrepid Britney fans collected snippets of leaked audio and created this compilation of "Mood Ring" for all to enjoy: Check it out here.

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