Lady Gaga is not the only pop star to release long-awaited new music tonight. On May 29, Britney Spears took a quick break from burning down gyms to release “Mood Ring (By Demand),†a song produced by DJ Mustard off of her 2016 album Glory that was only available on the Japanese deluxe version of the LP. “Repurposed this since we didn’t use it: You folks wanted a new album cover ….. ta da there you go,†wrote Spears in a tweet filled with emojis. “What was requested next is out now….. I hope you turn #MoodRing up sooooooo loud!!!! Spears is no stranger to giving her fans what they want. After her fans got Glory to No. 1 on the iTunes pop chart earlier this month, Spears decided to grace them with a new album cover. Now, she’s given them a hard-to-come-by track and her first new music in four years. Amazing to see that 20 years after Oops!… I Did It Again, Spears is generous with her talent as she’s ever been.