MARTINA MCBRIDE CONCERT POSTPONED The Martina McBride concert, scheduled for April 4th at the Prairie Knights Casino, has been postponed. There are plans to reschedule the concert, so any tickets purchased will still be valid for the new date; please hold onto them. If they are unable to reschedule the concert they will issue refunds. Prairie Knights will remain open. Keep checking our sites; we will follow-up with any new developments.