Brown appears on a remix of her song "Birthday Cake'' and she appears on a remix of his "Turn Up the Music.'' Their music union is noteworthy because Brown beat up Rihanna three years ago and is still on probation for the assault.
Rihanna says it was her idea for Brown to appear on her song because he's "the hottest R&B artist'' right now. He then asked her to be on his song...
Read more on TooFab: Rihanna Claims Her Collaboration With Chris Brown Is "Innocent"
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