PAUL SIMON'S 2012 CHILDREN'S HELP FUND BENEFIT CONCERT

Sting and his wife, Trudie Styler, have joined the star-studded lineup of the 25th anniversary benefit concert for the Children's Help Fund, a charity co-founded by Paul Simon.

Simon, Stevie Wonder and James Taylor are among the previously announced artists who will appear at the event, which is being held October 4 at Radio City Music Hall in New York City. Steve Martin and Latin pop star Ruben Blades also are among the bill's new additions.

The theme of this year's concert is family, and with that in mind many of the performers will be accompanied by members of their immediate clans. Simon will sing with his wife, Edie Brickell; Taylor will appear with his spouse, Caroline; and Wonder will hit the stage with his daughter Aisha.

Other celebrities scheduled to appear at the show include Tom Hanks and his wife, actress-singer Rita Wilson; country star Vince Gill and his wife, Christian-pop artist Amy Grant; and Tina Fey and her husband, composer Jeff Richmond.

The Children's Health Fund provides medical services to homeless and financially disadvantaged families throughout the U.S. The organization has aided more than 350,000 people since it was founded in 1987.