Kelly Rowland and AJ McLean chat with ET’s Cassie DiLaura about ‘Building the Band,’ now streaming on Netflix. The singers reflect on the full-circle moment of them working together on the show after Destiny’s Child opened for the Backstreet Boys back in 2001 during their ‘Black and Blue’ tour. Plus, the pair open up about also working with the late Liam Payne and the impact he had on the contestants.
