Musicians and entertainers including Rihanna, Kendrick Lamar, Demi Lovato, Neil Patrick Harris and Connie Britton will gather in New York City's Central Park on Saturday for the fifth annual Global Citizens Festival, a free music festival designed to increase awareness about issues facing people in various parts of the world.

Though admission is free (aside from paid VIP tickets available for purchase on Ticketmaster), fans have to perform a series of "actions" aimed at ending extreme poverty -- i.e. reaching out to government leaders on social media -- in order to accumulate points to make them eligible to win tickets. But if you weren't among the 50,000 or so people who managed to score a ticket, you can still watch from the comfort of your living room. (The final ticket lottery took place on Sept. 19, so if you don't have a ticket by now, you're out of luck.)

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MSNBC and MSNBC.com will be streaming the event in full on Saturday afternoon and evening. The concert will also be streamed via YouTube at YouTube.com/GlobalCitizen. Music and speeches are scheduled to begin at 4 p.m. ET and the festival is scheduled to wrap up around 10 p.m. ET.

This year's festival will feature musical performances from Rihanna, Kendrick Lamar, Demi Lovato, Major Lazer and Metallica, as well as special guests Chris Martin, Eddie Vedder, Usher, Eddie Goulding, Yandel, Yusuf/Cat Stevens, and more.

Other celebrities who are scheduled to make appearances include Chelsea Handler, Hugh Jackman, Neil Patrick Harris, Salma Hayek, Olivia Wilde, Forest Whitaker, Malin Akerman, Connie Britton, Andy Cohen, The Walking Dead's Danai Gurira, Bridget Moynahan and Bill Nye.

Check out more details about the festival here. Will you watch?