Jenna Dewan Tatum showed up to the 2017 American Music Awards in a metallic sheer dress by Julien Macdonald. The sparkly number featured a plunging neckline and a low, open back. The “World of Dance” host’s dress also featured a sexy slit in front, which showed off her toned legs. Jenna polished off the sexy look with smoky eye makeup and a wavy do. Keep reading to see every angle of her look below.