On this day (April 23) in 2005, the first-ever YouTube video was posted. It was a 19-second clip of co-founder Jawed Karim at the San Diego Zoo. Twenty years (and over 20 trillion videos) later, YouTube has become the go-to media site where you can find videos of just about anything. From music videos and nursery rhymes to DIYs and makeup tutorials, YouTube has played a part in our everyday lives.

To celebrate YouTube turning 20, we take a look at the 20 most-viewed videos on the platform!