I hope I'm right.
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| here's an exception - she's alway 18 |
Basically, Koreans calculate their ages the same way Chinese used to do it - you're born as a 1-year-old, and for every new lunar year, you gain +1 bonus to your age.
So a quick way to find out how old your favorite idol (which I hope is T-ara) is to just add 1 to the idol's age after the idol's birthday of the year is over.
Here's an example:


