Now this is a collaboration!

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Rihanna and Britney, two pop princesses in their own right, teamed up to make a remix of Rihanna's hit "S&M."

Brit not only adds her voice to the chorus of the song but also contributes a whole new verse that showcases her own naughty ways. 

The single, released through New York's Z100, was first teased on twitter by the duo earlier this weekend. 

Read more at E! and listen to the single here. 

Reach Nicole here.