While many of today’s K-Pop idols are still in high school, there are numerous stars in the industry who graduated a long time ago—and they still look just as young. Take these 8 female singers, for example. These 30-year-olds may have graduated all the way back in 2010, but they’ve barely aged a day since.

1. Irene (Red Velvet)

Red Velvet‘s Irene graduated from Haknam High School in Daegu, Gyeongsang.

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Irene in high school.

She was already 24 years old by the time she debuted as the group’s leader.

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Irene in 2020. | @renebaebae/Instagram

2. Seohyun (Girls’ Generation)

Girls’ Generation‘s Seohyun graduated from Jeonju Fine Arts High School in Jeonju, North Jeolla.

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Seohyun in high school.

She was still a high schooler when she debuted, graduating several years into the group’s career.

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Seohyun in 2020. | @seojuhyun_s/Instagram

3. Chorong (Apink)

Apink‘s Chorong graduated from Chungbuk High School in Cheongju, North Chungcheong.

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Chorong in high school.

She was the only member who was in her 20s when the group debuted.

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Chorong in 2020. | @mulgokizary/Instagram

4. Nana (After School)

After School‘s Nana graduated from Ochang High School in Cheongju, North Chungcheong.

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Nana in high school.

She debuted right at the end of her final year of high school.

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Nana in 2020. | @jin_a_nana/Instagram

5. Eunice (DIA)

DIA‘s Eunice graduated from an unknnow high school in Busan, South Gyeongsang.

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Eunice in high school.

She was already 25 years old when she debuted with DIA, but she was meant to debut in Jewelry a year earlier.

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Eunice in 2020. | @e.heomer/Instagram

6. Sojin (9Muses)

9Muses‘s Sojin graduated from an unknown high school in Gwangju, South Jeolla.

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Sojin in high school.

She debuted with her group in the same year she graduated high school.

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Sojin in 2020.

7. Woohee (Dal Shabet)

Dal Shabet‘s Woohee graduated from an unknown high school in Busan, South Gyeongsang.

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Woohee in high school.

She made her debut a year after Dal Shabet’s inception, joining at 22 years old.

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Woohee in 2020. | @woohee91/Instagram

8. Hyunyoung (Rainbow)

Rainbow‘s Hyunyoung graduated from Shinkwang Girls’ High School in Yongsan, Seoul.

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Hyunyoung in high school.

She made her debut as the group’s maknae a few months before graduating.

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Hyunyoung in 2020. | [email protected]/Instagram