The Beastie Boys [ tickets ] have confirmed additional dates for their "Get Out and Vote 08" tour, which will barnstorm several states later this month ahead of the Nov. 4 Election Day.

Kicking off Oct. 27 in Charlotte, NC, the shows--which all take place in swing states crucial to the race for the White House--will feature a rotating cast of guest stars, including Sheryl Crow [ tickets ], Jack Johnson [ tickets ], Ben Harper [ tickets ], Norah Jones [ tickets ], Crosby & Nash [ tickets ] and Tenacious D [ tickets ].

Newly announced cities on the trek include Richmond, VA (10/28), Youngstown, OH (10/29), Dayton, OH (10/30), St. Paul, MN (11/1) and Milwaukee, WI (11/2). Dates are included below, along with guest performers for each concert.

"We are going to do a few shows in hopes that we can remind people to vote," the Beastie Boys said in a joint statement last week announcing the run, adding that they are endorsing Sen. Barack Obama for president. "This election is too important, too much is at stake to stay at home. We hope that you can come out, have a nice night, dance, sing, get your freak on, and then wake up the next morning and get everyone that you possibly can to get out and vote."

Representatives from Rock the Vote will also be on hand to distribute information about local polling sites and early voting locations.

Aside from political goings-on, the Beastie Boys continue to support last year's all-instrumental effort, "The Mix-Up," which reached No. 15 on The Billboard 200 and scored a Grammy for Best Pop Instrumental Album. The set is the hip-hop trio's first studio release since 2004's "To the 5 Boroughs," which itself emerged after a six-year gap following 1998's "Hello Nasty." "The Mix-Up" is also the group's first instrumental-only effort since the 1996 compilation "The In Sound from Way Out."

All three Boys play instruments on their latest album, which is supplemented by contributions from longtime collaborator Mark Ramos-Nishita (a.k.a. Money Mark). A couple of songs from the set are streaming at the Beastie Boys' MySpace page.