Last weekend, Wilco performed at the 22nd annual Bridge School benefit concert  organized by Neil Young, with whom the band will be heading out on the road a month from now for a tour of North America. But you don't have to wait that long to see the band play live. Tune in to The Colbert Report on Comedy Central tomorrow night at 11:30 PM ET, when Wilco will be Stephen Colbert's guest.

And on Saturday, members of the band—Jeff Tweedy, John Stirratt, and Pat Sansone—will play a free Concert for Change on behalf of Barack Obama's Presidential campaign at the Union Theater in Madison, Wisconsin. Members of the area's congressional delegation, Senator Russ Feingold and Representative Tammy Baldwin, will speak at the event, which begins at noon, with doors opening at 11 AM. Tickets are free and are being distributed at the Campaign for Change student office at 216 North Henry Street and at today's farmer's market on Martin Luther King Boulevard.

Following the concert, participants will head to the polls to encourage voters to take advantage of the state's early voting system and can cast their ballots on Saturday.

For information, visit barackobama.com.

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Back on the Colbert front, David Simon, the creator of HBO's The Wire, is the guest on tonight's episode of The Colbert Report. Cast members of The Wire—Sonja Sohn (Det. Kima Greggs), Seth Gilliam (Sgt. Carver), and Gbenga Akinnagbe (Chris Partlow)—have been speaking at Obama rallies across the country.