Yook SungJae's Instagram / Ong SeongWu's Instagram / 51K
Hundreds of K-Pop idols debut every year, so it's only natural for there to be an overlap in names. In order to stand out as their own person, some idols use stage names that are either completely different or embody their original name in some way. While they promote under a different alias, their groupmates, staff, and family still refer to them by their original name.
While there are a vast number of people with common surnames like Lee or Kim, that's not the case for everyone. Some idols possess extremely rare family names that are hard to come by, even in Korea. Every 15 years, the country conducts a census in order to take note of and track the number of people with the same surname.
Take a look down below to see the 11 male K-Pop idols who possess the rarest family names.
Note: all data comes from the last census conducted in 2015.
1. Ong SeongWu
Ong SeongWu's Instagram
Even if you've been a part of the K-Pop community for 10+ years, you probably have not heard of another celebrity with the same surname as Ong SeongWu. His last name is one of the rarest in South Korea, and according to the 2015 census, there are a total of 967 people with the last name Ong.
2. BIGBANG's TaeYang (Dong YongBae)
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TaeYang is known all over the globe as a member of BIGBANG and his successful solo endeavors. While he has millions of fans, the number of people that share his family name is definitely on the smaller side. According to the 2015 census, there are a total of 5,936 people with the last name Dong.
3. SEVENTEEN's Boo SeungKwan
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Due to his outgoi
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