This list of most disliked YouTube videos contains the top 40 videos with the most dislikes of all time, as derived from YouTube charts.[1] The dislike count is taken directly from the page of the video itself. YouTube implemented a like and dislike button on these pages in 2010, part of a major redesign of the site. This served as a replacement for their five-star rating system;[2] YouTube's designers found the previous system ineffective because the options to rate a video between two and four stars were rarely selected.[3]