Complex sentence: The concert tour will kick off on 25 April 2014 at El Campín Stadium in Bogotá, Colombia, promoting their third studio album, "Midnight Memories", also announced along with the tour.
Split into simpler sentences: The concert tour officially kicked off on 25 April 2014 at El Campín Stadium in Bogotá, Colombia. It promotes the band's third studio album, "Midnight Memories", also announced along with the tour.