Global Citizen Festival 2013 headliners announced

Singer Alicia Keys performs during the Inaugural Ball at the Walter E. Washington Convention Center on Jan. 21, 2013, in Washington.
AP Photo/Paul Sancya

Stevie Wonder, Kings of Leon, Alicia Keys and John Mayer will headline the second Global Citizen Festival in New York's Central Park this fall.

Tickets for the Sept. 28 event will be available for free to thousands of people who take part in social action to combat poverty; about 54,000 tickets will be distributed at no cost as part of a lottery, and roughly 6,000 VIP tickets will be sold through Ticketmaster, with the net proceeds donated to charity.

The concert ties in with the United Nations General Assembly meeting in New York, with the goal of helping to end extreme poverty by 2030.

"We want to encourage people who got involved last year to continue to take their involvement to a whole new level," said Hugh Evans, CEO of Global Poverty Project, the nonprofit organization that organizes the festival.

Last year'sfestival featured performances by Neil Young and Crazy Horse, Foo Fighters and The Black Keys.

As for choosing this year's performers, Evans said, "We write a big list and we think, 'Who will effectively represent the cause of ending extreme poverty in the way they perform and the way they're involved, and who would also inspire a generation of people to take action?' We're fortunate that this year some extraordinary people put up their hands to perform for free."

Go here for ticket information.