After much speculation, Rihanna and ex-boyfriend Chris Brown have confirmed that they have collaborated on not one, but two songs together.

Following producers Da Internz claims that Rihanna’s remix of Talk That Talk album track Birthday Cake would “shock the world”, the singer revealed her tune with Brown yesterday (20th February) – her 24th birthday.

As well as working together on Birthday Cake, Chris has also recruited the We Found Love hitmaker’s help on a remix of his new single, Turn Up The Music.

The duo proceeded to post both songs on file sharing websites, as well as contacting each other on Twitter to tell their shocked followers about the tracks.