Carol for Coca-Cola, Get a Free Soda

A Coca-Cola vending machine is spreading Christmas cheer in Sweden one bottle at a time. Equipped with two microphones and a karaoke screen with lyrics, the "Sing for Me" machine at KTH - the Royal Institute of Technology in Stockholm - is accepting carols as payment for soda. The carols are produced by Karaokefabriken.

(Image credit: Coca-Cola)

This isn't the first time a Coca-Cola machine has accepted something other than money. Last spring, a machine in Singapore gave free sodas to customers who gave it a hug.

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