Rihanna's 'Birthday Cake' remix feauturing Chris Brown emerges online. Listen Here

Rihanna's new remix of 'Birthday Cake', which features her former boyfriend Chris Brown, has emerged online. Scroll down to and click to listen to the track. Rihanna has also appeared on the remix to Chris Brown's track 'Turn Up The Music'.

The pair hinted that they had worked together on a new collaboration yesterday (February 20) after Brown wished the singer a happy birthday on Twitter.

In the track, Brown's contribution is not a sublte one, introducing himself by saying "Girl, I wanna fuck you right now". To listen to the remix of 'Birthday Cake' click the link below

http://www.youtube.com/watch?v=ypgXMcQNpdM

Brown tweeted a link to the new version of Turn Up the Music. Rihanna later retweeted it. Click below for 'Turn Up The Music'

http://www.youtube.com/watch?v=MCclHlDPrag