Her Opponent: Chris Brown
Why They Were Beefing: Do we really have to explain this one? If so, you're probably reading the wrong magazine right now.
The Result: Two years after their "incident" at the 2009 Grammy Awards, Rih-Rih and Chris Breezy seem to be back on speaking terms (more on that later!). But you're kidding yourself if you don't think her tough new attitude isn't at least partially the result of what went down between her and CB.