Start the Britney Spears countdown. The "Work Bitch" is back.
The Grammy winner tweeted that her new track will premiere worldwide Monday, September 16 at 6 p.m. ET on iHeartRadio or your local radio station.
It will then be available at 12:01 a.m. September 17 on iTunes.
"Are u ready?!" she asked her 31 million Twitter followers.
Gosh, u better believe we are, girl.
She added the hashtag #YouBettaWorkB to her announcement tweet. Having seen the Britney Spears bikini photos she's been posting, she clearly is. B.