Article continues below advertisementRyan Seacrest is hitting the gym hard! Article continues below advertisementThe 50-year-old TV host jumped on Instagram to share a look at one of his workouts, showing himself powering through bicep curls with two 30-pound dumbbells. Dressed in a fitted blue tee and acid-washed gray shorts, he lifted away as his trainer counted off each rep.Article continues below advertisementSource: @ryanseacrest/InstagramRyan Seacrest showed off his workout in a new Instagram video.