Derek Hough ditched his shirt to enjoy a run around LA on Saturday afternoon. The dance pro — who was recently cast as Corny Collins in Hairspray Live! — showed off his fit physique as he stopped to give high fives to those who also completed the run with him at Pulse studio. Of course, this isn't the first time we've caught a glimpse of Derek's shirtless bod. Back in December, the actor flaunted his abs while hitting up the beach in Hawaii during a well-deserved vacation, and clearly, great abs run in the family, as Derek's sister, Julianne, was seen flaunting hers earlier this week. Keep reading for more of Derek, then check out the 40 hottest shirtless moments of 2016 — so far!