It's official: Wrath of the Lich King has broken the record for the fastest selling PC game of all time! WoW's latest expansion sold 2.8 million copies in the first 24 hours of release, the previous holder of the record was another WoW product, The Burning Crusade, which sold 2.4 million in the same time period.

Now we wait and see it they manages to sell the predicted 5 million in the first month. Here's the press release, more after the break:

IRVINE, Calif., Nov 20, 2008 (BUSINESS WIRE) -- Blizzard Entertainment, Inc. today announced that World of Warcraft(R)'s second expansion, Wrath of the Lich King(TM), has sold more than 2.8 million copies in its first 24 hours of availability*, making it the fastest-selling PC game of all time. This eclipses the previous record of nearly 2.4 million copies sold in 24 hours, set in January 2007 by Blizzard's first World of Warcraft expansion, The Burning Crusade(R). Wrath of the Lich King was simultaneously released in North America, Europe, Chile, Argentina, and Russia on November 13; Australia, New Zealand, Singapore, Malaysia, and Thailand on November 14; and South Korea and the regions of Taiwan, Hong Kong, and Macau on November 18.

In celebration of the launch, more than 15,000 stores throughout the world had their doors open at midnight to welcome thousands of expectant players. Several of these locations were attended by Blizzard Entertainment representatives, who met players and signed copies of the game.