Ad Age lists the top ten viral videos for the week of November 23.

A new entry this week muscles to the top, becoming the second largest number one debut on Ad Age’s chart.  More than three million people watched Muscle Milk’s Sexy Pilgrim, a crazy concoction thick on innuendo for both sexes, since its Thanksgiving launch.  Ad Age says the video was helped along by viral marketer Sharethrough and video site Metacafe.

For videogames, Activision’s viral for Tony Hawk: Ride with Tillman the board riding bulldog charged up the list this week to number two, with more than 2 million views.  Microsoft’s Natal video is still hanging on at number nine.  Lingerers aren’t unusual on the list, but they seem to be marked by fairly compelling content say creepy babies, or Ken Block risking lives and limbs in his drifting video for DC Shoes.  A little insight from Ad Age or Visible Measures seems forthcoming to understand just how Microsoft’s long-form advert featuring a too cool for earth family has drawn somewhere upwards of ten million views.  It could be the outstanding product promise.

Other new entries include a nifty animated video for Orbit gum, Plane Stupid’s graphic video tying airplane emissions to dead polar bears, and a viral launch for Frito-Lay’s Woman’s World campaign.

Ad Age’s chart includes number of views for the week and percentage change in views for videos that stayed on the chart.  The list is compiled by Visible Measures.

Check out the full list and watch the videos at Ad Age {link no longer active}.