Kellie Pickler turned 21 on Thursday (June 28), a few days after cancelling three performances on Brad Paisley's current tour due to illness. She did not perform in Grand Junction, Colo., Greeley, Colo., or Albuquerque, N.M., this past weekend but is scheduled to perform on Friday (June 29) near San Diego. Earlier this month, fellow opening act Taylor Swift also canceled several tour dates with Paisley due to severe bronchitis.