Last Friday night, Bun B and Aaron LaCrate celebrated the launch of their Milkcrate collaboration and the fall Milkcrate line with a party at Atmos in Harlem, N.Y. And in addition to Bun and LaCrate taking the stage--the latter of whom was joined by Square Biz on DJing duties--the crowd was treated to an A$AP Mob performance. You can view some photos from the event above.