TikTok is a online video sharing social networking service. It lets people create short music and lip-sync videos of 3 to 15 seconds and short looping videos of 3 to 60 seconds. They can post anything from life hacks to dances or even recipes. It is popular in Canada, the United States, and other parts of the world. It was first released under the name of musical.ly but was later bought out and renamed TikTok. 