Chris Brown Beats Frank Ocean?

Chris Brown was involved in a fight with Frank Ocean Sunday night, TMZ reports.

According to sources connected with Chris insist Ocean started it.

Chris was at Westlake Studio in the L.A. area listening to one of the artists he represents. The sources say as Chris went to leave, Frank Ocean and his crew blocked Chris from leaving. The sources say Frank said, "This is my studio, this is my parking spot."

Chris went to shake Frank's hand ... and that's when one of Frank's people attacked Chris.

Frank then came at Chris ... Chris pushed him away and they started brawling.

Cops say they will investigate and want to speak with Chris Brown. They refer to Ocean as "the victim" because he's the one who stuck around and spoke with police. Ocean said the fight started over a parking space (how L.A.) and Brown punched him. There were 6 people involved in the fight.