I'm The One DJ Khaled feat. Justin Bieber
Britney Spears been busy tweeting and thanking her fans for their support for 'Hold It Against Me'.
Britney's new single has been receiving its first radio plays and fans in some part of the world have already got it to number one in the iTunes chart.
The star released the song ahead of schedule - the as yet untitled album will of course follow.
Britney tweeted: "Don't #HOLDITAGAINSTME for coming out early. I couldn't wait any longer. Hope you don't mind.
"Anybody staying up late to get #HoldItAgainstMe on iTunes? I know I'll be awake (sic)."
"Seriously, I have the best fans ever. I love you all so much!! Everything I do is for you! xoxo Brit (sic)."
So what do you think of the new song - you can tell us here