Article continues below advertisementJulianne Hough sizzled in a see-through ensemble during an eventful evening on Dancing With the Stars.The 37-year-old exposed her toned abs in a long-sleeved, black sheer dress while hosting TikTok Night on Tuesday, September 30.Hough wore a tiny black tube top and shorts underneath the revealing ensemble.Article continues below advertisementSource: @juleshough/InstagramJulianne Hough wore head-to-toe black.She parted her hair to the side and swept her locks into a sleek, low bun. As for accessories, the star opted for a pair of chunky emerald earrings.