Hosts at this year’s free Global Citizen Festival in Central Park will include Katie Holmes, Olivia Wilde, Gerard Butler, Will.i.am, Erin Heatherton, Deborra-Lee Furness, Karolina Kurkova and Freida Pinto, Page Six has exclusively learned.

Stevie Wonder, Kings of Leon, Alicia Keys and John Mayer are headlining the event on the Great Lawn Sept. 28 to help the Global Poverty Project’s goal of ending extreme poverty worldwide.

Soledad O’Brien is this year’s lead host, and the event again coincides with the United Nations General Assembly gathering.

Other celebs scheduled to appear include the E Street Band’s Jake Clemons, Russell Simmons, Nobel Prize winner Muhammad Yunus and economist Jeffrey David Sachs.

Fans must “earn” their free tickets by learning about and supporting the worthy cause at GlobalFestival.com, and 54,000 tickets are being given out. The event’s first edition last year featured Neil Young, the Foo Fighters, the Black Keys, Band of Horses, K’naan and a surprise performance by John Legend.