Pumping her arms to an electronic ditty, aerobics instructor Khing Hnin Wai appeared oblivious as a convoy of armoured vehicles drove by -- accidentally capturing Myanmar's military coup-in-progress in a surreal video that has now gone viral.

The PE teacher in Naypyidaw, Myanmar's capital, posted footage of her workout to Facebook on Monday morning, gyrating and waving her arms to the tune of a dance track.

Unbeknownst to her, history was in the making right behind her as armoured vehicles and black SUVs swept by on the Royal Lotus Roundabout near the country's parliament.

The post soon went viral with more than 630,000 views on Facebook thanks to the bizarre juxtaposition of a power grab taking place against a pulsating earworm.

Soon the video was being scalped and spread across social media platforms -- one tweet containing the video had been viewed more than 11.7 million times 24 hours after it was posted.

Some photoshopped her dance into other recent historic moments -- such as the siege of the US Capitol last month -- or added their own favourite dance tracks to the original video.

© AFP