Machine generated contents note: 1. The G20 in the Constellation of Gs -- Establishment of the G20: 1997 -- 2008 -- The proliferation of Gs and other state groupings since 1945 -- The G20, a leadership summit or a leadership network? -- 2. Does the G20 Lack Legitimacy? -- Defining international legitimacy -- The G20 against the UN? -- The G20 instead of the G8? -- 3. The End of "The West and the Rest" -- The changing South -- Redrawing the world -- Conclusion: The G20, A New Grand Geopolitical Narrative?