The 22-year-old dancer isn't the only one wishing Hough a happy birthday. His sister, Julianne, took to Instagram to pay tribute to her brother alongside a sweet slideshow.
"Happy Birthday to my big brother! ???There is nothing better than hearing this 5yr old guttural laugh! This is your best self Dman!" she wrote. "I'm so lucky to be your little sister and to have had you to look up to my entire life. You never cease to amaze me with your talents, gifts and your heart!"