The Chicks postpone three shows after cutting short Indy gig

The tour apparently will continue this coming weekend in Toronto as The Chicks tweeted Wednesday night, "Thanks for always having our backs. Toronto, we'll see you Friday & Saturday!"

"As a result of strict doctor's orders for vocal rest, The Chicks are forced to postpone the following shows: Noblesville, IN, Cincinnati, OH, Clarkston, MI," The Chicks tweeted.

The shows were rescheduled to Sept. 28 in Clarkston, Sept. 30 in Noblesvile and Oct. 2 in Cincinnati. Patty Griffin will open each show as had been scheduled. Tickets for the original dates will be honored as well.

The Chicks started the show in Indianapolis, but had to cancel it due to the vocal problems about a half hour into the concert, according to Variety. Maines indicated she had been having vocal issues and was "waiting for this shot to kick in," referring to steroids.

="Indianapolis we are so sorry we could not give you the show you deserved OR the show we wanted to give you. We will be back Indianapolis!!," The Chicks tweeted.

Ticket holders will be contacted by the official point of purchase with more information, The Chicks said.