Listen to Rihanna & Britney Spears' Hot "S&M" Remix!

Thought Rihanna's "S&M" could not get any hotter? Think again! RiRi decided to spice up her hit track by adding a powerhouse collaborator — Britney Spears!

Rihanna premiered a brand-new remix — or "RIHmix" according to her — this morning of the upbeat, controversial hit "S&M" featuring none other than the princess of pop!

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She teased her followers on Twitter writing she had "a sexy collabo comin' your way supa dupa soon ... it's Britney bitch!!!"

Brit Brit then replied to RiRi on Twitter, writing, "You're such a tease! I like it, like it ..."

Brit contributed to the chorus on the remix as well as some of the song's sexy verses, singing, "Just one night full of sin/ Feel the pain on your skin/ Tough, I don't scream 'mercy'/ It's your turn to hurt me/ If I'm bad, tie me down/ Shut me up, gag and bound me/ 'Cuz the pain is my pleasure/ Nothing comes better."

So how did this powerhouse duo form? According to MTV, Rihanna asked her 4.4 million Twitter followers which artist they'd most like to see her collaborate with.

And Brit was the victor!

And they are both very happy with their product.

Rihanna Tweeted that the "S&M" remix is "Too much sex in the air. Think u can handle it? You're the only ones who can," calling Brit a "gangsta."