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.
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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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