Her Opponent: Photographer David LaChapelle
Why They Were Beefing: Shortly after Rih-Rih dropped her Melina Matsoukas-directed video for "S&M" back in February, LaChapelle claimed that the video was a direct bite of at least eight photographs that he had taken over the years. He sued her for plagiarism.
The Result: If you take a look at some of the photos in question, it's not hard to see that Rihanna and Matsoukas were, at the very least, influenced by LaChapelle's work. But judging from her most recent video, this beef hasn't exactly caused her to tone down her approach to creating visuals in any way. Good for her.