In terms of views, the most well-known YouTube videos include Psy's “Gangnam Style,” Justin Bieber's “Baby,” Jennifer Lopez's “On The Floor” and Taylor Swift's “Blank Space,” as of July 2015. View counts on YouTube change daily.
Psy's music video “Gangnam Style” is the most-viewed YouTube video of all time. The video was posted to YouTube in July 2012 and has received over 2.3 billion views since then. In second place is Justin Bieber's “Baby” music video featuring Ludacris, with over 1.1 billion views. The most well-known videos on YouTube in terms of views are often music videos.
The phrase "Gangnam style" refers to a specific lifestyle that Koreans associate with the Gangnam District of Seoul, South Korea. The music video has received positive reviews thanks to Psy's amusing dance moves and the song's catchy beat. The dance became a YouTube phenomenon, with many people re-enacting it.
An example of a well-known video that isn't a music video is "Charlie Bit My Finger – Again!” The YouTuber HDCYT uploaded the video to YouTube in May 2007, and it has received 825 million views as of July 2015. The video shows a child sticking his finger into his baby brother's mouth and getting bit. The baby's laughter and the older brother's British accent helped this video become popular.