Paul McCartney, the Red Hot Chili Peppers, Tony Bennett, Sonic Youth, Ben Harper and the Innocent Criminals, Los Lonely Boys and Tegan & Sara will join event founder Neil Young on the bill for the

Paul McCartney, the Red Hot Chili Peppers, Tony Bennett, Sonic Youth, Ben Harper and the Innocent Criminals, Los Lonely Boys and Tegan & Sara will join event founder Neil Young on the bill for the 18th annual Bridge School Benefit. The shows will be held Oct. 23-24 at Shoreline Amphitheatre outside San Francisco.

Performing as part of Bridge School's traditional acoustic format will be unfamiliar to a number of the artists, particularly McCartney. The former Beatle will be offering what is believed to be his first acoustic set since a 1991 taping for "MTV Unplugged," which was later released on CD.

Harper will be making his second Bridge appearance. His guest turn on Pearl Jam's "Indifference" at the 2001 event was released on a holiday single for members of the band's Ten Club fan organization.

The Peppers, Tegan & Sara and Sonic Youth will also each be making their second Bridge School visits, while Bennett and Los Lonely Boys will be making their event debut.

As for Young, the shows will cap a brief run of performances that comprises a Sept. 15 show in Berkeley, Calif., the Sept. 17 Clean Air benefit in Duncan, British Columbia, and the annual Farm Aid benefit on Sept. 18 outside Seattle.

Tickets for this year's Bridge School go on sale Sunday (Sept. 12) via Ticketmaster.