Opening acts have not yet been named.

Radiohead has announced a set of June tour dates consisting of two-show theater stints in North American nine cities. The run will open with a June 1-2 stand just outside of Philadelphia at the Tower Theatre and conclude with a June 29-30 showing at Los Angeles' Greek Theatre. Opening acts have not yet been named.

Previously reported speculation of multiple-night visits to Chicago, Montreal and Toronto have also come to fruition. In addition, the U.K.-based act will perform twice in New York, San Diego, Los Angeles and Berkeley, Calif. Tickets for some of the newly-announced shows go on sale Friday (May 5) via the band's Web site.

Outside of a previously announced June 17 headlining appearance at Tennessee's Bonnaroo festival, no other North America tour dates are being planned, according to a band spokesperson.

Radiohead's European festival dates begin May 6-7 in Copenhagen and will pick back up in August with a handful of dates in the U.K. and Hungary.