When I first saw Baekho, I thought he was approaching his 30's... I was very surprised when I found out he's 22!

Hyorin's got that mature vibe about her where she looks like she's in her 30's but she's still in her 20's.

Chungha is another beauty who I thought was in her mid-20's but she's just 22.

If you didn't know his age, you would probably think he was in his late 20's. He looks very mature for his age.

When I first saw his profile photo, I thought he would be the oldest in the group... Nope, he was 18 when this photo was taken and just turned 19.

Tzuyu's mature appearance and tall height would make believe that she is the oldest in TWICE! However, she just turned 19 on June 14.

Hwasa's girl-crush features and sexy appearance make her look more mature than her actual age. Did you know that she is only 22 years old?

I thought Jessi was in her 30's but she hasn't even turned 30 yet.

Hayoung looks like she's more in her late 20's than her early 20's.

Dongwoon looks like he's in his 30's but he turned 27 not too long ago.