Radiohead has tacked on 11 more dates to its North American tour schedule in support of "Amnesiac," due June 5 from Capitol and a day earlier internationally. As previously reported, the first leg of

Radiohead has tacked on 11 more dates to its North American tour schedule in support of "Amnesiac," due June 5 from Capitol and a day earlier internationally. As previously reported, the first leg of the tour will begin June 18 in Spring, Texas, and close June 29-30 in Santa Barbara, Calif. A second leg will begin Aug. 1 in Chicago and wrap Aug. 20 in Los Angeles.

The opening act for the North American shows will be fellow U.K. rock outfit the Beta Band, whose latest Astralwerks album "Hot Shots II" is set for a July 17 release. While most shows will be staged in traditional venues, several will visit such unconventional locales as the Liberty State Park in Jersey City, N.J., and the Suffolk Downs racetrack in Boston.

"I Might Be Wrong," the first single from "Amnesiac," was serviced to North American rock radio last week, and is getting heavy airplay at stations such as KJEE Santa Barbara and WOXY Cincinnati. The first single internationally is the dark piano-heavy track "Pyramid Song," a video for which will begin airing on music channels in the coming weeks. A commercial single for "Pyramid Song" drops May 21 in the U.K.

Here are Radiohead's tour dates:
May 26: Bilbao, Spain (Bullring)
May 30: Verona, Italy (TBA)
June 1: Nurburgring, Germany (Rock Am Ring)
June 2: Nuremberg, Germany (Rock Im Park)
June 4: Landgraaf, Netherlands (Pinkpop Festival)
June 18: Spring, Texas (C.W. Mitchell Pavilion)
June 20: Morrison, Colo. (Red Rocks)
June 23: George, Wash. (the Gorge)
June 24: Vancouver (Thunderbird Stadium)
June 27: Mountain View, Calif. (Shoreline Amphitheater)
June 29-30: Santa Barbara, Calif. (Santa Barbara Bowl)
July 7: Oxford, England (South Park)
Aug. 1: Chicago (Butler Field)
Aug. 2: Toronto (Molson Park)
Aug. 5: Montreal (Park Jean Drapeu)
Aug. 7: Cuyahoga Falls, Ohio (Blossom Music Center)
Aug. 9: Philadelphia (venue TBA)
Aug. 11-12: Centreville, Va. (Bull Run Regional Park)
Aug. 14: Boston (Suffolk Downs)
Aug. 16-17: Jersey City, N.J. (Liberty State Park)
Aug. 20: Los Angeles (Hollywood Bowl)
Sept. 30: Osaka, Japan (Castle-Jo Hall)
Oct. 3: Yokohama, Japan (Yokohama Arena)