The star-studded Global Citizen Festival is about to add some more famous friends into the mix

Stephen Colbert, Kerry Washington, Salma Hayek, Olivia Wilde and Deborra-Lee and Hugh Jackman will all help host the massive social good festival. Willie Geist, Janet Mock, Thomas Roberts and Alex Wagner will host the live simulcast on MSNBC, while Tamron Hall will host a one-hour special on NBC.

Hugh Evans, the CEO of Global Citizen, tells Mashable that the hosts were chosen for more than just big name appeal.

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Stephen Colbert, Kerry Washington to host star-studded Global Citizen Festival