The Katy Perry SNL Performance meme stems from her 2017 appearance on Saturday Night Live, specifically during her performance of the song 'Swish Swish.' While Perry danced, she was joined by Russell Horning, better known as the 'Backpack Kid,' who performed a high-speed version of 'The Floss' while wearing a backpack and maintaining a deadpan expression. The stark contrast between Perry's high-energy pop choreography and Horning's awkward yet impressive arm-swinging immediately went viral. It is commonly used to represent situations where two completely different energies collide, or where someone is trying hard to fit in while something much weirder is happening right next to them.