Global Citizen, a nonprofit organization uses fan engagement and star power to pressure governments and business to institute change.
After 10 years, Global Citizen has raised over $40 billion across the world.
While many of the participating stars use their time on stage to speak to the power brokers of the world, fans are involved by being required to tweet to their representatives about the issues for the opportunity to get tickets to the live events.
View the whole story here: https://www.billboard.com/articles/business/8530583/global-citizen-plan-end-extreme-poverty-advocacy