Katharine and Kris Camilli devised a clever trick to immortalise their family and friends' reaction to their exciting pregnancy news.
The couple had their loved ones pose for photos and secretly recorded the scene on their phones, then revealed the good news.
The initial confusion followed by little explosions of happiness are priceless.
Katherine's sister uploaded a compilation of the reactions to YouTube, ensuring that the joyful moments - and a few less-than-stellar halloween costumes - will be seen and remembered for years to come.
The video seems to have hit a nerve around the world, as it has already been viewed more than 1.2 million times in five days.
This post first appeared on Mashable.