Derek Hough & the 'DWTS' Guys Go Shirtless to Film Promo

Derek Hough goes shirtless and shows off his toned body while filming a promo for the upcoming season of Dancing With the Stars on Monday (August 29) at Griffith Observatory in Los Angeles.

The 31-year-old dancer shed his shirt along with the other DWTS guys, including Sasha Farber, Alan Bersten and Val and Maksim Chmerkovskiy.

PHOTOS: Check out the latest pics of Derek Hough

Other dancers, including Sharna Burgess, Keo Motsepe, Witney Carson, Brittany Cherry, Jenna Johnson, Lindsay Arnold, Hayley Erbert and Emma Slater, were also on set to film the video.

40+ pictures inside of some shirtless pros at a DWTS promo shoot…