Through their communiqués and other outputs, the BRICS countries have worked hard to present themselves as a cohesive group. This effort, however, belies sharp differences in the political, economic, and policy approaches of the member states. ‘Hanging together’ explains how the BRICS has proved sustainable despite the group being riddled with rivalries over borders, resources, and status; divided on the issue of reforming the United Nations Security Council; and not always acting as a concerted bloc within other informal institutional settings, even in the context of the G20, where there is not always adherence to traditional North–South alliances. It also considers why South Africa was brought into the BRICS.