It's a pertinent question. I looked up what the G7 was on Wikipedia:
The Group of Seven (G7) is an intergovernmental political and economic forum consisting of Canada, France, Germany, Italy, Japan, the United Kingdom and the United States; additionally, the European Union (EU) is a "non-enumerated member". It is organized around shared values of pluralism, liberal democracy, and representative government. G7 members are major IMF advanced economies.