You may have seen this one included in Weezer's 'Pork and Beans' video, but the Guinness World Record for most T-shirts worn at once lives on YouTube with over 9 million views. Radio host Matt McAllister of Phoenix's KNIX originally set the record (as seen here) but was quickly overthrown by the YouTube masses.

Urlesque unveiled the 100 Most Iconic Internet Videos -- the most popular and memorable viral videos in the history of the web. Since there's a lot to sift through, we'll occasionally feature an individual video from the countdown.