Sara posted a short video of her cat opening the refrigerator. She thought only her friends would watch it. But the next morning, thousands of people had shared it. By the end of the week, millions had seen it. Her cat had officially gone viral! Last week, a shy student recorded himself singing in his bedroom. His friend shared the video without telling him. The next day, thousands of people were commenting. By Friday, the video had gone viral, and a music producer contacted him! Idiom: Go viral Meaning: When something (a video, photo, post, story, etc.) spreads very quickly and widely on the internet because many people share it. If something goes viral, a lot of people see it and share it online very fast. It spreads fast — like a virus. Example Sentences Her dance video went viral on TikTok. His tweet had gone viral and got millions of views. Have you ever posted something online? Have you seen a video that everyone was talking about? Why do some videos become very popular? What kind of videos usually go viral? Would you like something you post to go viral? Why or why not? What are the advantages and disadvantages of going viral?