In a 15-minute SXSW set at the Back Alley Social, Harlem rapper
Charles Hamilton was as upbeat as a motivational speaker: expressing equal enthusiasm whether the crowd was cheering or quiet, joking with the guy who flipped him off, rocking a bright yellow Sonic the Hedgehog T-shirt and being so amped about having a new girlfriend that he just had to give her a phone call in the middle of his set. "Whatever
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