Chris Brown Underage Partying

TMZ wants the Alcohol Beverage Control to investigate whether Chris Brown drank alcohol when  he partied at L.A. club Guys and Dolls after his sentencing hearing this week. The problem: Brown’s 20 and the club’s liquor license is strictly 21+.

TMZ has a photo gallery that proves Brown was in fact drinking something that night.

TMZ UPDATE: A rep for the club tells TMZ “Chris Brown was at Guys and Dolls for a scheduled personal appearance. A good time was had by all.”