Hello
안녕하세요
(Annyeonghaseyo)
こんにちは
(Konnichiwa)
你好
(Ni Hao)
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I think this song you can get away with all year round as it doesn't necessarily sound like a Christmas song. But that doesn't stop me from including it in my countdown.
It first made an appearance back in 2017, and is making it's 5th appearance on my countdown.