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Spears premiered the song at her own site and tweeted the single’s cover art. You can listen to their three-way take here.
While Ke$ha’s contribution is generally ignorable—besides the fact that she, know, c0-wrote the track in the first place—Minaj’s cartoonish rap at the top doesn’t jibe very well with the rest of the song’s razor-sharp cool. It’s as though Minaj is rapping on a different song that you have to get through in order to get to the real song.
Watch Britney Spears Video ::(til the world ends)