Inspired by a thread of omnimorphism
This is everyone who debuted in 2020 (Groups, bands, solo):
Japan
- 2i2
- .BPM
- 100-YOKAI
- 180Jack.
- 1gakki no Maegami
- 7+ME LINK
- 844 35
- 9DayzGlitchClubTokyo
- ACCAMER
- Ado
- Aitai ne!
- AKIARIM
- Akina
- Alliance
- Am8
- AMAKAZE
- Amaterasu
- AnemOne
- Ano
- Anone
- ARCANA PROJECT
- ArodnaP
- Aoyama Rabness
- Ars'alum
- Asaborake no Aka Iro wa Imada Kimi no Uchi ni Kowarezu ni iru
- AXXX1S
- Azatoi
- A . ZU . NA
- BABABABAMBI
- Bad Trip
- BAMBi
- BarbiexBarbie
- BATROICA METAL SUMMER JACKET
- Beardored
- Beatcats Girls
- BERAVE
- Bite & Bullet
- BLACK SNOW
- BOCCHI.
- BOKU ha KIMI no KAKERA.
- Boku wa Mada Shinanai
- Boom Trigger
- BROTHER SUN SISTER MOON
- BugME
- BXW
- Challange Girls!!
- ChamJam
- Chat NoiR
- Chocolate Rabbits
- Chouonpa
- Chouzetsu Venom-chan
- Chrono Stjarna
- Chöu Chöu.
- Cikah
- COUPRêVE
- Crimson Crat Clan
- Crunch Cookie
- CUBΣLIC
- D.O.L
- DEERET
- DiverDiva
- DoublePeace
- Drop girl's
- Drop♡ace
- DSPMSTARS
- EAST LAND BEASTS
- Elementale 4-nen 8-kumi
- EMBRACE
- ENJIN
- ERROR
- EVE
- Ever! BE Mayowanai!!
- F606
- Fairy✩elements
- FaM
- Feeeee.
- Final Selection
- Fluffy Star
- FRUN FRIN FRIENDS
- Furihata Ai
- Gekizyou Refrain
- Genesis
- GENIC
- GLIM ROAD
- GoodDay
- GRACiAS
- GREAT MONKEYS
- GYROAXIA
- HAKOBUNE
- Haruka Nana
- Hashtag Adorable
- Hell'z Kitchen
- Hellz Kitchen
- HICO
- Higuche Kaede
- Hikicomoteikoku
- HikuteAmata
- Himemosu Orchestra
- Hirate Yurina
- Hinnizume Rina
- Houkage Riot
- I Orche
- I'm Funny Fable.
- Ikenkai Rouge Magic
- ILiFE!
- INforMEL
- INTEGMA
- INUWASI
- Iroha
- JO1
- KALMIA
- KEIKO
- Kimi ni, Mue Kyun.
- Kimi to Kizamu Chikai no Kurosu
- Kitsunebi
- Koi no Neko
- Kudo Haruka
- Kuhaku Gokko
- Kumada Akane
- Kumori Rara
- Kusonoki Tomori
- L★ROCK BAB
- L.I.E.P
- LAUGH CARROT
- LeapPlane+.
- Lee Min Hyuk
- Lil na Valey
- Lily Spunky
- LilyveiL
- Limit
- Link Laze
- LIT
- Little Emperor Syndrome
- Liyuu
- LizNoir
- LOVE SPEARS
- LunaxHolic
- LUV NEO GIRLS WAVE
- Lyrical Lily
- M55IVE THE RAMPAGE
- MAD VIOLET
- MAGICOUR
- MANACLE
- Minami-ni
- MELT
- Meltlight
- Meow
- Merkmal Memal
- Milk & palette
- Milky✳︎Sphene
- MindaRyn
- Misola de edison
- MM
- Monoclone
- Morfica
- Mori Fuuka
- My Dear Darlin'
- Nagasa Mana
- Nakashima Yuki
- Nanami Tina
- Nemopero from Dempagumi.inc
- NerLuster
- New ruru
- NiA
- Niji no Fantasista
- Ninomiya Yui
- Nippon Wachacha
- NiziU
- NOA
- Nousatsu❤︎After Beat
- OHMIKAMI
- Oishii Aimai
- One-X
- ORβIT
- Otome Etoile
- Otsuka Sea
- OUT BANG
- OWV
- OXYGENLOVER
- Papian Éveil
- Peaky P-Key
- Peel the Apple
- PEXACOA
- PIGGS
- PLANCK STARS
- PLEVAIL
- PLUMAGE
- Poison Palette
- Police Nante Gongo Doudan!
- Psyche to Raga
- Pu Lathessa
- Qnto Syrup
- QU4RTZ
- QUADRATUM
- Rabi Rin
- Rainbow Panic
- Re roll
- Reaction
- REBEL REBEL
- Retro na Shoujo
- REVERBEE
- RiKKYY
- RILSVERSE
- Rincent
- Riyu no admin
- ROSETTE
- ROUN WiTH YOU
- Saikou Generation
- Sakamoto Yuka
- Sakurazaka46
- SARAGIA
- Secret Chat Noir
- Seiten no Hekireki
- SG
- Shizuoka Flavor
- Shupines
- Sieglamm!
- simpαtix
- SixTONES
- Snooty
- Snow Man
- SOMOSOMO
- SPACE PIRATES class ZERO
- SpadeE-logiC
- Sprak-Ring
- Spice Love
- Starly☆
- STRAY SHEEP CLAYMORE
- SUIGETSU
- Sukiiro Drop
- Suwa Nanaka
- Suzuki Aina
- Sway Emotions Slightly
- Sweet Alley
- SZWARC
- Takao Kanon
- Tenjin Kotone
- TENRIN
- THE SAVAGE
- THE+BIRTH
- THRILL
- THX
- Tierna
- Title Mitei
- ToKickBe●REC
- Tokyo Parallel
- Tomita Nanaka
- Toumei no Tobira.
- TOYBOX
- Twenty★Twenty
- TwinStellar
- Uchiage Hanabi
- Ulysses
- UnK≠LucK
- Usotsuki Grimms.
- Waki Azumi
- WARPs UP
- What's◎CIRCLE
- WiLL DoLL
- WOLCHANSTOPPER
- XPLACE
- Yumegiwa last Girl
- YURiMental
- Zoomgals
Korea
- 2NYNE
- 2Z
- Aespa
- Angelina Danilova
- AREAL
- Arisha
- Asome.D
- B.O.Y
- BAE173
- Ban Seolhee
- Bandage
- Bang Ye Dam
- BECZ
- BLACKSWAN
- Bling Bling
- BOTOPASS
- BTOB 4U
- Burvey
- BXK
- Byulzzi
- CHECKMATE
- CHIC&IDLE
- Cho Min Kyu
- Cignature
- CN19
- CRAVITY
- CRAXY
- D.Ark
- D.COY
- Dahye
- DAY6 Even of Day
- Daydream
- Demian
- DKB
- DONGKIZ I:KAN
- Dream Candy
- DRIPPIN
- DUSTIN
- DUSTIN-ON
- E'LAST
- Ellia
- Ellie
- ENHYPEN
- Episode
- F.able
- Florida
- GHOST9
- Girls2000
- Go Woon
- H&D
- Han Seung Woo
- Hannah Jang
- Hayeon
- Ha Yu Jin
- Hibana
- HIDDEN FOLDER
- Him Chan
- Huh Chan Mi
- Hyunjun Hur
- Hyunseong
- I&M
- Isol
- Jay Chang
- Jeonyoul
- JH
- Jung Chae Rin
- Juo
- KAACHI
- Kai
- Kang Hyung Ho
- KEEMBO
- Ken
- Keumjo
- Kiara
- Kim Haeri
- Kim Kook Hoen
- Kim Woo Seok
- Kim Yo Han
- KyoungSeo
- Kyuhyun
- LA POEM
- Lee Dae Won
- Lee Eun Sang
- Lee Hae In
- Lee Su Hyun
- Like Me
- Lina
- LUCY
- Liminous Elf
- LUNARSOLAR
- LXX
- MAKAMAKA
- Mark
- Max Changmin
- MCND
- MERAMERAHEART
- Moon Jongup
- Moonbin & Sanha
- MY.st
- MyoU
- Namjoo
- Natty
- OFF THE CUFF
- ON AIR
- ONE
- P1Harmony
- Park Soyeon
- Perfume de Ange
- PRECIOUS
- PRISMA
- Q-ra
- Q6IX
- Rakiyah
- RE:KIDS ANGEL
- RE:KIDS DREAM
- Red Velvet - Irene & Seulgi
- REDSQUARE
- Refund Sisters
- ROA
- Roya
- Ryu Su Jeong
- SECRET NUMBER
- Seo Eunkwang
- Serri
- Sia
- Solar
- SONOKI
- SSAK3
- STAYC
- Suho
- SUMIN+Zion.T
- Sun
- Super Five
- SWAY
- Tier 4
- TO1
- TREASURE
- Trusty
- UNVS
- Weeekly
- WEi
- WHONHO
- Withus
- WIZ N
- WJSN CHOCOME
- Woo!ah!
- XENEX
- XRO
- XUM
- Y&W
- Yiyang
- YooA
- Yoon Dujun
- Youha
- Yulia
- Yunu
(source of information was mainly fandomwiki, sorry if I forgot anyone)
