People who were working out at Red Rocks Amphitheater witnessed an unusual sight over the weekend.
A bystander sent in the video to CBS4 showing a man rolling down the seats of the amphitheater. Every time he landed, he did what looks like a pushup.
In the video, you can see everyone else stop their workout to look on in awe at the unusual exercise.
This wasn't the only rigorous activity in his workout routine.
According to CBS4, the same man was also spotted doing jumps up the planter boxes on the side of the music venue as well as frog lepas down the seats.
The person who captured the video asked the man who he was and what he might be training for and the man replied "in a cryptic Russian accent ‘I will not tell you.'” Then he ran off.
CBS4 reports that professional athletes are commonly spotted doing workouts at Red Rocks.