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In only five years, video sharing site YouTube has become one of the most popular Web sites in the world and today the site gets more than one billion views each day.
The Web site was set up in February 2005 by three former PayPal employees by the names of Steve Chan, Chad Hurley and Jawed Karim.
Just a year and a half later, YouTube was sold to Google for an astounding $1.65 billion.
Currently, there is 1,700 year's worth of video on the site.
Here's our look at some of the most memorable YouTube clips of all time.
Lady Gaga's Bad Romance music video with more than 187 million hits.
Charlie bit my finger with an astounding 181 million hits.
Susan Boyle impresses on Britain's Got Talent and with the help of YouTube, launches her music career with 91 million hits.
David After the Dentist was another big hit with 57 million hits. Today, you can even buy your own "David after the dentist" t-shirts.
The Wedding Dance received 48 million hits and was even parodied in the American sitcom, "The Office".
Single Ladies was one of Beyonce's biggest songs of 2009, but it was this video that got all the attention.
Dancing Matt around the World received 28 million hits.
We'd like to know what you think.
What are some of your favorite YouTube clips? Did we miss out any that you like?