When Filip Cvetkovic saw a man dancing alone on the back of a Queen streetcar, he knew he had to capture it on video.

"Normally, I'd instinctively want to pass a streetcar but I stayed behind it to watch this guy keep dancing," he said.

At a long red light, he managed to pull out his phone. "It was just convenient that the song on the radio matched up."

He said the man was "dancing his heart out."

"With winter, it's easy to get grumpy. But his positive spirit made me feel better," he said.