The Google Arts and Culture app, which first appeared in 2016, is full of gorgeous features perfect for culture aficionados, like virtual tours of art museums and landmarks around the world, zoom-views of paintings, and curated daily digests featuring news and history.But its most popular feature allows downloaders to match their selfie with a famous portrait, a feature that naturally took off right away, becoming an immediate social media sensation. Celebrities even weighed in on the action, posting their hilarious — and sometimes very accurate — results.