The video posted by a user who lives in Lethbridge in southern Alberta shows a group of friends camping in the woods with their band gear when a cop car pulls up.
The posting says the chums thought they'd done something wrong when the officer came over, but he grabbed a guitar and played a bit before jumping behind a drum set.
The video entitled "Coolest Cop Ever Playing Drums in the Woods" isn't clear where the jam session happened.
So far the video has had nearly 200,000 views.
Many Americans are posting comments such as "only in Canada" and "Canadian police are the best."
"We all assumed that we were in trouble, but really he just wanted to shred on the guitar and play the drums a bit. What a nice fella," reads the description on the video.