Derek Hough and Hayley Erbert delivered a moving ballroom performance on Tuesday night's episode of “Dancing with the Stars.” The duo brought the “DWTS” audience to tears as they danced to Benson Boone's “Beautiful Things (Acoustic)” during the show's “Dedication Night,” marking Erbert's return to the “DWTS” dance floor following her emergency craniectomy and cranioplasty […]