Of all the strangest and most random things to happen, bottle caps have become the latest celeb-loved internet fixation.
What is the bottle cap challenge?
The bizarre craze is the latest to sweep social media.
To take part, the participant kicks a loose bottle lid off a bottle and sweeps it away with a roundhouse martial arts kick.
Most videos show the attempt at a full 360C spin before the kick-off.
It might look easy but it requires a surprising amount of skill.