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Ayumi Hamasaki, Kyoko Fukada - White Christmas

Two of the most famous Jpop idols sing a very special rendition of a Christmas classic. So catchy I still cant get it out of my head!
Morning Musume Rudolph the rednose reindeer

To be the top otaku Christmas music video you have to excel above the rest and provide something unique. The Morning Musume girls give us just the thing: weird cosplay. Watch as this troupe of cute girls sing in even cuter reindeer costumes.
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Why I Love Japanese TV3
Why I Love Japanese TV2