FILE - This Oct. 20, 2011 file photo shows Chris Brown performs live as part of the F.A.M.E Tour at The Staples Center in Los Angeles. Brown is under investigation for an alleged assault in a West Hollywood parking lot, the Los Angeles County Sheriff's Department said early Monday, Jan. 28, 2013. Deputies responding to a report of six men fighting Sunday night found the scene clear, but were told by witnesses that there had been a brief fight over a parking space. (AP Photo/Katy Winn, file)