As 2021 is here, let's take a look back at 2020 and see all the K-pop groups that made their debut this past year, in alphabetical order! This list does not include sub-unit debuts.
1. 2NYNE
2. 2Z
3. Aespa
Aespa is a four-member girl group under SM Entertainment that debuted in November 2020 with the single "Black Mamba." The group is composed of Karina, Giselle, Winter, and Ningning.
4. AREAL
5. Asome.D
6. B.O.Y
B.O.Y is a duo composed of Kim Kookheon and Song Yuvin, who are both former members of MYTEEN and had previously competed on "Produce X 101."
7. BAE173
BAE173 is an eight-member boy group under MBK Entertainment. The group debuted on November 19, 2020, and had two former X1 members, Hangyul and Dohyon.
8. Bandage
9. BECZ
10. BLACKSWAN
BLACKSWAN debuted in June 2020 as a rebranding of Rania. The group is under DR Music and is composed of members Youngheun, Fatou, Judy, and Leia. Originally five members, Hyeme left the group in November 2020.
11. Blastar
12. Bling Bling
13. BOTOPASS
14. Byulzzi
15. CHECKMATE
16. CHIC&IDLE
17. cignature
cignature is a girl group formed by C9 Entertainment and managed by J9 Entertainment. They are the sister group to CIX. They made their debut on February 4, 2020.
18. CN19
19. CRAVITY
CRAVITY is a boy group under Starship Entertainment and debuted on April 14, 2020. Prior to the group's debut, members Jungmo, Wonjin, Minhee, and Hyeongjun competed on "Produce X 101", with the two latter members debuting in the project group X1.
20. CRAXY
21. D.COY
22. Daydream
23. DKB
DKB is a nine-member group under Brave Entertainment. They debuted on February 3, 2020. They are the first boy group under Brave Entertaince since Big Star.
24. DMZA
25. DRIPPIN
DRIPPIN is a seven-member boy group under Woollim Entertainment that debuted on October 28, 2020. The group contains former X1 member Cha Junho.
26. DUSTIN
27. E'LAST
28. ENHYPEN
ENHYPEN is a boy group under BELIFT Lab, a venture between Big Hit Entertainment and CJ E&M. The group was formed through the survival show "I-LAND."
29. Episode
30. F.able
31. Floria
32. GHOST9
GHOST9 is a boy group under Maroo Entertainment that debuted on September 23, 2020. The group contains members that competed on survival shows, such as "Produce X 01" and "Mixnine."
33. Girls2000
34. H&D
H&D is a duo under Pocketdol Studio that debuted on April 21, 2020. The group is composed of former X1 members Hangyul and Dohyo. They are also members of the group BAE173.
35. HIDDEN FOLDER
36. HitGirlz
37. JUO
38. KAACHI
The most controversial group on this list! KAACHI is the self-proclaimed first K--pop girl group based in the United Kingdom. The group debuted on April 16, 2020, under FrontRow Records.
39. KEEMBO
40. LABELUP
41. Like Me
42. LUCY
43. Luminous Elf
44. LUNASOLAR
45. Maka Maka
46. MCND
MCND is a five-member boy group under TOP Media. The group debuted in February 2020.
47. MY.st
48. OFF THE CUFF
49. ON AIR
50. ONE
51. P1Harmony
P1Harmony is a six-member girl group under FNC Entertainment that debuted on October 28, 2020. The group made headlines for being a fusion between K-pop and K-movie.
52. PRECIOUS
53. PRISMA
54. Purple Rain
55. RE:KIDS DREAM
56. REDSQUARE
57. Refund Sisters
Refund Sister is a four-member project girl group that was formed through MBC's Hangout with Yoo. The group is composed of Uhm Jung Hwa, MAMAMOO's Hwasa, Jessi, and Lee Hyori.
58. SECRET NUMBER
SECRET NUMBER is a five-member girl group under VINE Entertainment that debuted on May 19, 2020. The group made headlines for having the first Indonesian female K-pop idol and two former YG Entertainment trainees.
59. SSAK3
SSAK3 is a project co-ed trio that was formed through MBC's "Hangout With Yoo." The group debuted on July 25, 2020, and is composed of Yoo Jae Suk, Lee Hyori, and Rain.
60. STAYC
STAYC is a six-member girl group under High Up Entertainment. They are the first girl group formed by producer duo Black Eyed Pilseung. They debuted on November 12, 2020.
61. Super Five
62. SWAY
63. TOO
TOO is a 10-member boy group managed by n.CH Entertainment. The group was formed the survival show "World Klass." The group debuted on April 1, 2020.
64. TREASURE
TREASURE is a 12-member boy group under YG Entertainment. The group was formed through the survival show "YG Treasure Box." They debuted on August 7, 2020.
65. Trusty
66. UNVS
67. Weeekly
Weeekly is a seven-member girl group under Play M Entertainment. The girl group debuted on June 30, 2020.
68. WEi
WEi is a six-member boy group under OUI Entertainment. Notable group members include former X1 member Kim Yohan, soloist and former JYJ member Kim Donghan, former RAINZ member Jang Daehyeon, former "YG Treasure Box," and "Produce 101" contestant Kang Seokhwa, and former 1THE9 members Yoo Yong Ha and Kim Jun Seo. The group debuted on September 11, 2020.
69. Withus
70. WIZ N
71. woo!ah!
woo!ah! is a five-member girl group under NV Entertainment. They debuted on May 15, 2020.
72. WOW
73. XENEX
74. XRO
75. XUM
76. Y&W
Most of them will probably disband in 2021.
Competition is getting harder, it seems like the whole Korean population will be an idol at one point.
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