Have you seen the viral video where a choir of gummy bears sing a rousing chorus of Adele's Someone Like You?
Or maybe the slightly bizarre sight of people putting make-up on potatoes?
Or perhaps you have been out and about and someone has inexplicably shouted "hit or miss" at you?
These seemingly unconnected experiences all share one thing in common - they are memes on TikTok, the short-form video app that you may not have heard of if you are over the age of 35.
For those who use it, it is a big deal and the app is looking to extend its reach to new demographics all the time.
Owned by Chinese internet firm Bytedance, the app was first launched in China in 2016 with the name Douyin and grew to 100 million users in the space of a single year, with a billion views daily.
It went on to become the most downloaded app in China and Thailand by the start of 2018, and in October was the third most downloaded app globally.