Because of the tragic events this past Saturday at the Indiana State Fair, concerts scheduled for this week have been canceled including the Lady Antebellum show, originally slated to happen this Friday.  According to CMT.com, Lady A, has issued a statement saying,

"We were so sad to hear what happened and have kept the families of those injured and especially those that lost their lives in our prayers," 

The fair has also canceled a concert with Janet Jackson, while, pop group Maroon 5 has moved their show to Conseco Fieldhouse and made it a benefit for the victims of the accident.  For all other shows, you may get a refund at your point of purchase.