Dancing With the Stars pro Alan Bersten is teasing his performance with Jenna Dewan for Dedication Night after her partner Val Chmerkovskiy’s suspension. “I am so honored to be stepping in and dancing with @jennadewan,” Bersten, 32, wrote via Instagram on Tuesday, October 20, sharing photos of the pair on the ballroom floor with Dewan’s mom, Nancy Smith. “You are such a light and it’s so beautiful to see you and your mom share the floor.” When Bersten and Dewan, 45, take the stage on Tuesday, the pair will honor Smith with a Viennese waltz to “Unchained Melody” by The Right...