Gangnam Style overtakes Bieber to become most watched YouTube video ever

South Korean rap star Psy's music video "Gangnam Style" has become the most watched YouTube video ever with more than 800 million views, edging past Canadian teen star Justin Bieber's 2-year-old video for his song "Baby."

Psy's video, which pokes fun at the wealthy Gangnam district of Seoul, has generated countless parodies and become a media sensation.

YouTube, in a post on its Trends blog, said Gangnam Style surpassed the site's previous record holder, Bieber's 2010 music video "Baby," on Saturday.

By morning on Monday, Gangnam Style was leading Baby by 824 million to 805 million views.