There are conflicting stories about who started it, but Chris Brown is under investigation by the Los Angeles County Sheriff’s Department for an alleged assault in a West Hollywood parking lot.
LOS ANGELES, CA - DECEMBER 25: Recording artists Chris Brown and Rihanna attend the NBA game between the New York Knicks and the Los Angeles Lakers at Staples Center on December 25, 2012 in Los Angeles, California. The Lakers defeated the Knicks 100-94. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Victor Decolongon/Getty Images)(Photo by Victor Decolongon/Getty Images)