The eight rules of photobombing – as revealed by celebrities
The Prince Harry photobomb is just the latest celebrity lesson in a subtle art. And everybody from Kevin Spacey to Beyoncé are showing us how it's done

It used to be enough to just be famous and in the background of someone else's photo – but celebrity photobombers are stepping up their game, and so should the royals. Here, your various Highnesses, is how to photobomb like a king:
The eight rules of photobombing – as revealed by celebrities | Art and design | The Guardian