<P> YouTube is an American video - sharing website headquartered in San Bruno, California . Since its establishment in 2005, the website has featured a "most viewed" section, which lists the most viewed videos on the site . Although the most viewed videos were initially viral videos, such as Evolution of Dance and Charlie Bit My Finger, the most viewed videos were increasingly related to music videos . In fact, since Lady Gaga's "Bad Romance", every video that has reached the top of the "most viewed YouTube videos" list has been a music video . Although the most viewed videos are no longer listed on the site, reaching the top of the list is still considered a tremendous feat . </P> <P> By June 21, 2015, only two videos, "Gangnam Style" and "Baby", had exceeded one billion views . However, three and a half months later, on October 7, ten videos had done so . As of May 2018, all the videos on the list of the 100 most - viewed have exceeded one billion views, with 22 of them exceeding two billion views; six of which exceed three billion views and one of which exceeds five billion views . "Despacito" became the first video to reach three billion views on August 4, 2017, followed by "See You Again" on August 6, 2017, and then on November 25, 2017, "Gangnam Style" became the third video to hit three billion views, followed by "Shape of You" on January 7, 2018, doing so in 343 days; on March 31, 2018, "Uptown Funk" became the fifth video to reach three billion views, followed by "Masha and the Bear: Recipe for Disaster" on April 27, 2018 . "Despacito" also became the first video to reach four billion views on October 11, 2017, and then on April 5, 2018, became the first video to hit five billion views . </P>

Despacito is the most viewed video on youtube