Chicago rock outfit Wilco has set a string of North American and European tour dates in support of its long-awaited fourth album, "Yankee Hotel Foxtrot," due April 23 from Nonesuch.

Chicago rock outfit Wilco has set a string of North American and European tour dates in support of its long-awaited fourth album, "Yankee Hotel Foxtrot," due April 23 from Nonesuch. In a post on the band's official Web site, the group speaks of its current set of five West Coast dates as the "beginning of the 'official' tour in support of" the new album, which will continue with U.S. dates in April and a May trip through Europe. An April 30 appearance on "The Late Show with David Letterman" is also confirmed.

The post also thanks the group's fans for sticking around through last year's much-publicized label issues and addresses them in regard to the upcoming release of "Yankee Hotel Foxtrot," which was made available online last year in streaming form. Wilco urges listeners who may already own copies of the Internet files to view the album's official release as a chance to validate the group's generosity.

"Together, we have the opportunity to prove a lot of people wrong by showing that trusting your fans and letting them hear your music via the Internet is not the threat to the artist's livelihood that some people in the music business would like us all to believe," the post reads. "Just because we made 'YHF' available from our site via the QuickTime stream and unauthorized copies of the record have been widely available online since last summer doesn't have to have a negative effect on sales."

The group explains the Nonesuch release will include "some 'enhanced content'" and sport better sound quality than the Internet-streamed version. It asks fans to help the "cause" of Wilco (and other bands whose music has become available online) in other ways, such as supporting touring bands, requesting play on radio stations, and engaging in word-of-mouth publicity.

Here are Wilco's tour dates:

March 16: Los Angeles (UCLA/All Tomorrow's Parties)
March 19: Boulder, Colo. (Mackey Auditorium)
April 18: Bloomington, Ind. (Axis)
April 19: Columbus, Ohio (PromoWest Pavilion)
April 20: Pittsburgh (Metropol)
April 21: Toronto (Convocation Hall)
April 22: Montreal (Spectrum)
April 24: Providence, R.I. (Lupo's Heartbreak Hotel)
April 25-26: New York (Bowery Ballroom)
April 28: Baltimore (Recher Theatre)
May 1: Cleveland (Agora)
May 9: Dublin (Ambassador)
May 11: Glasgow (QMU)
May 12: Manchester, England (MDH)
May 13: London (Astoria)
May 15: Oslo (Rockefella)
May 16: Hamburg (Gruenspan)
May 17: Cologne, Germany (Prime Club)
May 18: Nuremberg, Germany (Rock Am Ring)
May 19: Nurburgring, Germany (Rock Im Park)
May 21: Milan (Magazzini Generall)
May 22: Zurich (Rote Fabrick)
May 24: Paris (Divan du Monde)
May 25: Utrecht, Holland (Tivoli)
May 26: Amsterdam (Melkweg)