'Hold It Against Me' hitmaker Britney appears on a remix of Rihanna's recent single 'S&M', with the Barbadian singer promising the results are 'sexy'.

She tweeted: ' got a #SEXY collabo comin your way supa dupa soon!!!! OH YEAH!!! By popular demand... Its BRITNEY BITCH!!!! (sic)'

Britney responded, tweeting back: 'You're such a tease! I like it, like it. You think they're ready Ri Ri (sic)?'

Rihanna added further praise for the star, writing: 'Britneyspears One of the biggest worldwide popstars! U gangsta #EPIC (sic).'

Britney returned the compliment, writing: 'You ain't so bad yourself honey (sic).'

'S&M' caused controversy when it was released in January, with its raunchy video ' which sees Rihanna simulating sex with a blow up doll - reportedly banned in 11 countries, mainly in South East Asia.

It was also edited for commercial radio in the UK, with certain words including 'sex', 'whips' and 'chains' omitted.

A release date for the remix has yet to be given.