Rihanna 'pens Brown split song'

Rihanna has reportedly written a song about her split from R&B singer Chris Brown.

The track, which features guest vocals from Lady GaGa, is called 'Silly Boy' and a demo version has been posted online by Kanye West.

The lyrics include the lines: "I said I'm not coming back. You fooled me once but you can't have that ego turning.

"Just too bad for you, that when you had me. Didn't know what to do, she's over you.

"Cause you had a good girl, good girl, girl. That's a keeper. You had a good girl, good girl but didn't know how to treat her.

"So silly boy get out my face. Why do you like the way regrets taste?"

The pair split in February after an alleged altercation that saw Rihanna left with "horrific injuries"

Brown recently denied claims that he leaked nude images of the Bajan singer online.