Rookie K-Pop groups are typically considered those that have debuted within the last two years. There have been a lot of boy groups that have debuted since early 2020, and all of them are talented! Something that does vary between them quite a lot, however, are their average ages at the time they debuted. Here’s a look at the average debut ages for 18 rookie boy groups, based on the mean number of all the members’ ages!
18. ENHYPEN
Debut date: November 30, 2020
Ages of members at debut:
- Heeseung: 19 (born October 15, 2001)
- Jay: 18 (born April 20, 2002)
- Jake: 18 (born November 15, 2002)
- Sunghoon: 17 (born December 8, 2002)
- Sunoo: 17 (born June 24, 2003)
- Jungwon: 16 (born February 9, 2004)
- Ni-ki: 14 (born December 9, 2005)
Average debut age: 17
17. MCND
Debut date: February 27, 2020
Ages of members at debut:
- Castle J: 20 (born May 31, 1999)
- BIC: 18 (born April 25, 2001)
- Minjae: 16 (born August 23, 2003)
- Huijun: 16 (born October 7, 2003)
- Win: 15 (born December 19, 2004)
Average debut age: 17
16. P1Harmony
Debut date: October 28, 2020
Ages of members at debut:
- Theo: 19 (born July 1, 2001)
- Keeho: 19 (born September 27, 2001)
- Jiung: 19 (born October 7, 2001)
- Intak: 17 (born August 31, 2003)
- Soul: 15 (born February 1, 2005)
- Jongseob: 14 (born November 19, 2005)
Average debut age: 17.2
15. GHOST9
Debut date: September 23, 2020
Ages of members at debut:
- Shin: 20 (born March 18, 2000)
- Junhyung: 19 (born October 21, 2000)
- Kangsung: 18 (born August 8, 2002)
- Junseong: 17 (born September 29, 2002)
- Prince: 17 (born January 10, 2003)
- Woojin: 17 (born April 7, 2003)
- Jinwoo: 16 (born September 13, 2004)
Average debut age: 17.7
14. TREASURE
Debut date: August 7, 2020
Ages of members at debut:
- Hyunsuk: 21 (born April 21, 1999)
- Jihoon: 20 (born March 14, 2000)
- Yoshi: 20 (born May 15, 2000)
- Junkyu: 19 (born September 9, 2000)
- Mashiho: 19 (born March 25, 2001)
- Jaehyuk: 19 (born July 23, 2001)
- Asahi: 18 (born August 20, 2001)
- Yedam: 18 (born May 7, 2002)
- Doyoung: 16 (born December 4, 2003)
- Haruto: 16 (born April 5, 2004)
- Jeongwoo: 15 (born September 28, 2004)
- Junghwan: 15 (born February 18, 2005)
Average debut age: 18
13. T1419
Debut date: January 11, 2021
Ages of members at debut:
- Noa: 20 (born August 2, 2000)
- Sian: 19 (born February 1, 2001)
- Kevin: 19 (born April 28, 2001)
- Gunwoo: 18 (born May 28, 2002)
- Leo: 18 (born October 8, 2002)
- On: 18 (born October 16, 2002)
- Zero: 17 (born January 20, 2003)
- Kairi: 17 (born February 24, 2003)
- Kio: 16 (born November 25, 2004)
Average debut age: 18
12. BLITZERS
Debut date: May 12, 2021
Ages of members at debut:
- Go_U: 19 (born June 15, 2001)
- Juhan: 19 (born June 21, 2001)
- Jinhwa: 19 (born January 15, 2002)
- Sya: 18 (born September 9, 2002)
- Chris: 18 (born November 19, 2002)
- Lutan: 17 (born December 6, 2003)
- Wooju: 17 (born January 21, 2004)
Average debut age: 18.1
11. CRAVITY
Debut date: April 14, 2020
Ages of members at debut:
- Serim: 21 (born March 3, 1999)
- Allen: 20 (born April 26, 1999)
- Jungmo: 20 (born February 5, 2000)
- Woobin: 19 (born October 16, 2000)
- Wonjin: 19 (born March 22, 2001)
- Minhee: 17 (born September 17, 2002)
- Hyeongjun: 17 (born November 30, 2002)
- Taeyoung: 17 (born January 27, 2003)
- Seongmin: 16 (born August 1, 2003)
Average debut age: 18.4
10. DRIPPIN
Debut date: October 28, 2020
Ages of members at debut:
- Hyeop: 21 (born August 13, 1999)
- Yunseong: 19 (born October 30, 2000)
- Changuk: 19 (born July 25, 2001)
- Dongyun: 18 (born February 18, 2002)
- Minseo: 18 (born May 13, 2002)
- Junho: 18 (born July 9, 2002)
- Alex: 16 (born October 6, 2004)
Average debut age: 18.4
9. MIRAE
Debut date: March 17, 2021
Ages of members at debut:
- Lien: 22 (born March 11, 1998)
- Junhyuk: 20 (born May 16, 2000)
- Douhyun: 20 (born December 25, 2000)
- Khael: 19 (born January 18, 2002)
- Dongpyo: 18 (born September 9, 2002)
- Siyoung: 16 (born May 6, 2003)
- Yubin: 15 (born June 10, 2004)
Average debut age: 18.6
8. Just B
Debut date: June 30, 2021
Ages of members at debut:
- Geonu: 20 (born February 2, 2001)
- Bain: 20 (born May 4, 2001)
- Lim Jimin: 20 (born May 22, 2001)
- JM: 19 (born October 11, 2001)
- DY: 19 (born February 21, 2002)
- Sangwoo: 18 (born September 3, 2002)
Average debut age: 19.3
7. KINGDOM
Debut date: February 18, 2021
Ages of members at debut:
- Dann: 23 (born November 1, 1997)
- Arthur: 20 (born April 15, 2000)
- Mujin: 20 (born November 20, 2000)
- Louis: 19 (born April 8, 2001)
- Ivan: 19 (born October 12, 2001)
- Jahan: 18 (born August 1, 2002)
- Chiwoo: 18 (born September 2, 2002)
Average debut age: 19.6
6. Ciipher
Debut date: March 15, 2021
Ages of members at debut:
- Tan: 24 (born August 25, 1996)
- Hwi: 22 (born February 4, 1999)
- Hyunbin: 21 (born February 26, 2000)
- Keita: 19 (born July 4, 2001)
- Tag: 18 (born September 30, 2002)
- Dohwan: 17 (born August 26, 2003)
- Won: 17 (born December 18, 2003)
Average debut age: 19.7
5. Xdinary Heroes
Debut date: December 6, 2021
Ages of members at debut:
- Gun-il: 23 (born July 24, 1998)
- Jungsu: 20 (born June 26, 2001)
- Gaon: 19 (born January 14, 2002)
- O.de: 19 (born June 11, 2002)
- Jun Han: 19 (born August 18, 2002)
- Jooyeon: 19 (born September 12, 2002)
Average debut age: 19.8
4. E’LAST
Debut date: June 9, 2020
Ages of members at debut:
- Choi In: 24 (born February 11, 1996)
- Seungyeop: 24 (born May 8, 1996)
- Rano: 21 (born December 10, 1998)
- Baekgyeol: 20 (born December 1, 1999)
- Romin: 19 (born April 24, 2001)
- Wonhyuk: 18 (born February 22, 2002)
- Wonjun: 18 (born March 8, 2002)
- Yejun: 17 (born August 23, 2002)
Average debut age: 20.1
3. WEi
Debut date: October 5th, 2020
Ages of members at debut:
- Daehyeon: 23 (born February 11, 1997)
- Donghan: 22 (born July 3, 1998)
- Yongha: 21 (born January 11, 1999)
- Yohan: 21 (born September 22, 1999)
- Seokhwa: 19 (born December 1, 2000)
- Junseo: 18 (born November 20, 2001)
Average debut age: 20.7
2. LUMINOUS
Debut date: September 9th, 2021
Ages of members at debut:
- Youngbin: 22 (born October 5, 1998)
- Suil: 22 (born March 30, 1999)
- Steven: 21 (born January 17, 2000)
- Woobin: 21 (born April 1, 2000)
Average debut age: 21.5
1. OMEGA X
Debut date: June 30th, 2021
Ages of members at debut:
- Jaehan: 25 (born July 1, 1995)
- Hwichan: 25 (born April 18, 1996)
- Sebin: 25 (born April 24, 1996)
- Hangyeom: 24 (born July 17, 1996)
- Taedong: 23 (born November 7, 1997)
- Xen: 23 (born February 20, 1998)
- Jehyun: 22 (born April 20, 1999)
- Kevin: 21 (born January 12, 2000)
- Junghoon: 21 (born February 14, 2000)
- Hyuk: 21 (born March 15, 2000)
- Yechan: 20 (born May 14, 2001)
Average debut age: 22.7
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