WestJet airlines treated customers on recent overnight flight to a Christmas flash mob.  

In early December at the Calgary airport, 166 passengers waiting to board a midnight flight to Toronto were surprised by singing and dancing elves.

Even Mr. and Mrs. Claus made an appearance in the departure lounge to the delight of those waiting to board the flight.

The video was released on YouTube earlier this week and helped bolster WestJet's reputation for innovative marketing.

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Santa moonlights for WestJet during a late night flash mob at the Calgary International Airport. (Courtesy WestJet)