NEW MUSIC: Britney Spears featuring Nicki Minaj and Ke$ha: "Til The World Ends (Remix)"

Well... here it is.

About a week or so after Britney's guest appearance on Rihanna's "S&M Remix"

Tourmates Britney Spears, Nicki Minaj team up with Ke$ha (the writer of the song)

to KILL this remix. I'm really diggin' it.

I wonder if Ke$ha's vox are from her demo...

Thoughts? Comment below!