Bruce Springsteen is joining a group of musicians campaigning against President George W Bush in the US election race.
Springsteen has called the November election "critical"
The rocker has announced fundraising concerts in nine critical states, alongside acts including Pearl Jam and the Dixie Chicks.
Calling themselves Vote for Change, the artists will play shows in 28 cities in October, ahead the November election.
Announcing the gigs, Springsteen said: "I feel this is one of the most critical elections in my lifetime."
"This wasn't one that a concerned citizen felt comfortable sitting out."
Rockers John Mellencamp and Jackson Browne will join Springsteen on stage for up to six concerts a day during the tour.
Money from the tour will go to America Coming Together - an anti-Republican group, campaigning ahead of the presidential election.
US President George W Bush and his Democratic rival John Kerry go to the polls on November 2.
Natalie Maines of the Dixie Chicks, who last year told an audience in London she was ashamed to share her
home state of Texas with Bush, said it was time for change.
"There's never been a political climate like this, which
is so the polar opposite of me as a person and what I
believe in," she said.