Shanghai-based underground label Gully Riddim has their nine-year anniversary party this weekend, with a stacked lineup of DJs playing bass, grime, drill, dubstep, and D&B across two floors. The headliner of the night is UK producer MssingNo and it's also the release party for Shanghai-based producer and core Gully Riddim member Zean's new EP. For fans of heavy bass, this is the party of the month for sure.