OKLAHOMA CITY (KFOR) — American folk rock music duo Indigo Girls are postponing their October 11 concert at Scissortail Park. The Northern Lights Could Be Viewable in Oklahoma Tonight Scissortail Park officials said on Thursday afternoon that the cancelation is due to a serious family emergency. Indigo Girls are expected to reschedule the concert at a later date in 2025. For a list of other upcoming events at Scissortail Park, visit scissortailpark.org/events.