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Rihanna and Britney Spears have joined forces for a new remix of 'S&M'.
The pair have collaborated together for a re-working of the hit single which sees Riri and Brit trading vocals.
Rihanna posted a link to the track this morning (11.04) after tweeting a number of teases overnight.
'I got a #SEXY collabo comin your way supa dupa soon!!!! OH YEAH!!! By popular demand....' she wrote before adding: 'Its BRITNEY BITCH!!!!'
Britney responded, tweeting back: 'You're such a tease! I like it, like it... You think they're ready Ri Ri (sic)?'
In her final tweet Rihanna posted: 'Monday morning FIRE! @Rihanna f/@britneyspears "S&M (Remix)"