Last night at a charity event, Chris Brown showed a side we are used to seeing: RAGE!

He and his posse unleashed on a valet over...a $10 parking fee.

TMZ reports the valet outside PINZ bowling alley  in Studio City, CA, where Chris was attending a charity event, was supposed  to charge $5 a pop, but when Chris tried to pick his car up, the valet tried  to scam him by charging $10.

The source says other people who parked at  PINZ last night were charged $5. Chris believes he was singled out because  he's famous.