I was just told this, and I can't believe I never noticed it!

 

Listen to the 2nd and 4th 'You want a piece of me?' in the chorus. Those are Robyn!! :o

Now you've mentioned it, it well does sound like her :lol:

 

Haha thanks for that, I learn something new all the time. :D

Yeah it has her on the song credits as well :D

she co-wrote and sings back up vocals on the song I belive :)

Isn't this like really old? but yeah it is her :D :heart:

Ohhh yeah lol

She sings back-up vocals so it's definitly her ^_^

They sounds like half-Britney, half-Robyn. :lol:

They sounds like half-Britney, half-Robyn. :lol:

 

...half-Madonna :rofl:

Maybe it is a combination of both their vocals? Excluding the Madonna option :lol:

Maybe it is a combination of both their vocals? Excluding the Madonna option :lol:

 

But it does sound like Madonna, doesn't it?

Not really? To me it doesn't at least. :P

I don't think it sounds like Madonna but you can really hear Robyn's voice in there with Britney's during parts. I knew she did backing vocals a while back once it was posted on Wikipedia and in the album booklet. Then I could totally tell it was her in the song. I thought it was odd but cool considering I started really getting into Robyn with her new singles! :D