Rihanna has announced a special collaboration with Britney Spears.
An excitable Rihanna tweeted "I got a #SEXY collabo comin your way supa dupa soon!!!! OH YEAH!!! By popular demand.…"
She then proceeded to tweet famed Britney catchphrase "Its BRITNEY BITCH!!!!"
All this comes after Rihanna asked her 4.4 million Twitter followers who they'd most like to see her collaborate with. The resounding response was 'BRITNEY', which was lucky as this has probably been in the works for a while.