BigXthaPlug’s attorney pledged to fight misdemeanor gun and drug charges after the rapper’s album release party was abruptly canceled following his arrest in Dallas.

An officer asked the driver, identified as Landum, if he had a firearm. BigXthaPlug told officers he did and detailed where to find it in the truck. Police said a criminal database flagged Landum as connected to a gang in Arlington, which meant he was not legally allowed to possess a gun.

Dallas rapper BigXthaPlug, whose real name is Xavier Landum, was arrested on charges of marijuana possession and unlawful possession of a firearm following an album release party for his new album in Dallas.