Sleater-Kinney singer and guitarist Carrie Brownstein aggravated a back injury during a concert in New Orleans last weekend, forcing the band to call off several dates on its tour in support of The Hot Rock.

Some of the shows will be rescheduled, according to Maggie Vail, publicist with Kill Rock Stars Records, for which Sleater-Kinney records.

Brownstein, 24, pulled muscles in her back some time ago, Vail explained. That injury apparently did not heal properly, so the problem resurfaced Saturday during a concert at New Orleans' Howlin' Wolf club.

"She was in a lot of pain in New Orleans," Vail said late Monday night. "She went to the emergency room and the doctor told her if she didn't get off her feet pretty immediately that she might be looking at chronic back pain."

The band cancelled a show slated for Monday in Atlanta. Brownstein is scheduled to fly back to Olympia, Wash., the band's hometown, Tuesday (March 16).

Eight East Coast dates have already been rescheduled for May. It is unlikely that concerts in Toronto, Cleveland, Detroit, Chicago, Minneapolis and Denver will be rescheduled, according to band manager Julie Butterfield.

The Hot Rock, Sleater-Kinney's fourth album, has been well-received since hitting store shelves last month. The disc, which includes the songs "Get Up" (RealAudio excerpt) and "Banned From the End of the World" (RealAudio excerpt), debuted on the Billboard 200 albums chart at #181.

Rescheduled Sleater-Kinney Tour Dates:

May 23; Atlanta, Ga., Echo Lounge

May 24; Athens, Ga., 40 Watt Club

May 25; Carrboro, N.C., Cat's Cradle

May 27; Washington, D.C., Black Cat

May 28; Philadelphia, Pa., Trocadero

May 29-30; New York, N.Y., Irving Plaza

June 1; Boston, Mass., Middle East