Rascal Flatts will be performing at the PPL Center in Allentown on Sept. 26 and their opening acts are two TV singing competition alums Kellie Pickler and Danielle Bradbery, The Express Times reported.

After finishing in sixth place on the fifth season of "American Idol," Pickler signed to 19 Recordings and BNA Records and went on to have several hits including "Red High Heels," "I Wonder," "Didn't You Know How Much I Loved You" and "Best Days of Your Life."

In 2013, Pickler won the sixteenth season of "Dancing With The Stars" with Derek Hough and released her fourth album "The Woman I Am.'