Whatever diet and workout regiments Neil Patrick Harris, Jared Leto, Rob Lowe and Tyson Beckford are following, they’re working! Not shy about stripping off their shirts and hitting the beach in their board shorts, these male celebrities are living, breathing proof that a healthy lifestyle pays off when it comes to maintaining a fantastic physique. It’s hard to believe that 1980s heartthrob Rob Lowe is in his 50s, and manages to maintain the body of a 20-something.

For many of the stars, the key is finding the motivation. The multi-talented Neil Patrick Harris told Live! With Kelly & Michael that he dropped 22 pounds in 2014 for his role in Hedwig And The Angry Inch by doing “nothing but cardio” and changing his eating habits. "I just stopped eating late. I was the kind of person who, after we put the kids down, would go eat at like 9 or 9:30pm,” he said in the interview. Derek Hough, on the other hand, is reportedly dating newly single Kate Hudson, so he might be motivated to workout alongside his very athletic lady friend.