Let’s Find Out More About LOONA Subunits: Debut, Members, Discography

LOONA sub units debut

Let’s Find Out About the LOONA Subunits, Here!

As we know, LOONA (LOOΠΔ) is a girl group under Blockberry Creative that debuted on August 19, 2018, with their first single “Hi High”. Consisting of 12 beautiful girls, this group successfully got many awards at many events, such as at the 2021 Golden Disk Awards in the category for Next Generation Award. But, did you know this group already had subunits before their official debut, the units named Loona 1/3, Loona Odd Eye Circle, and the last unit is Loona yyxy. So then, when did the group officially debut and what are the members’ positions?

In this article, we have provided detailed information about the LOONA subunits’ debut, members, and their discographies. So, keep on reading this article!

Loona 1/3

Loona 1/3 debut

Let’s go to the first unit, named Loona 1/3. This subunit was formed through a pre-debut project group namely Girl of the Month. The unit consists of 4 members, namely HeeJin, HaSeul, ViVi, and HyunJin. This unit debuted with a soft concept showing their innocent and sweet looks.

On March 12th, 2017, Loona 1/3 made their stage debut on SBS’s Inkigayo and the next day they released the official music video of their single “Love&Live”Here’s the music video with over 3 million views!

On April 27th, 2017, this unit did a reissue of their single album Love & Live titled Love & Evil adding two new tracks, one of which is “Sonatine”.

Members and Positions

loona 1/3 member
  • Haseul: Leader & Main Vocalist
loona 1/3 unit member

Loona’s member who was born in Ansan, Gyeonggi, is the leader and main vocalist in this subunit. Haseul was the 3rd member that was revealed and she also debuted with a pre-debut single album named HaSeul with the title track “Let Me In”.

  • Heejin: Visual, Lead Vocalist, Main Dancer
loona 1/3 heejin

Heejin was the first member that released the pre-debut single album on October 5th, 2016, the album was named HeeJin with the title track “ViViD”. Heejin was revealed as the first member of this unit on September 26th, 2016. Not only as a visual, but Heejin also got the position as a center of the group.

  • ViVi: Sub-vocalist & Lead Dancer
loona 1/3 vivi

Even though Vivi was the last member that was revealed as a Loona member on April 5th, 2017, her pre-debut single album was quite successful. Her album named ViVi has a title track “Everyday I Love You” featuring the leader, HaSeul.

  • Hyunjin: Lead Vocalist, Lead Dancer, Maknae
loona 1/3 hyunjin

Hyunjin is the youngest member in Loona and this subunit. She was revealed on October 28th, 2016, and her pre-debut solo album with the title track “Around You” was released a month after.

Loona 1/3 Discography

loona sub unit name


Album Title Track Year
Love & Live Love&Live (지금, 좋아해) 2017
Love & Evil Sonatine (알 수 없는 비밀)


EP & Reissue Albums

Album Type Title Tracklist Release Date
Extended Play Love & Live Into the New Heart March 13th, 2017
Love&Live (지금, 좋아해)
You and Me Together
Fairy Tale
Valentine Girl (3월을 기다려)
Reissue  Love & Evil Love&Evil April 27th, 2017
Sonatine (알 수 없는 비밀)
Rain 51db (비의 목소리 51db)


Loona Odd Eye Circle

loona odd eye circle profile

This unit consists of three members namely Kim Lip, JinSoul, and Choerry. Same as the previous unit, Loona Odd Eye Circle was also made from the pre-debut project Girl of the Month and debuted on September 21st, 2017, along with the release of their MV. Here’s the video!

Different from Loona 1/3, this group concept was using the girl crush concept and expressed their playful, tempting, and romantic side. They debuted by releasing the first extended play Mix & Match with the title track “Girl Front”. Like other groups, this Loona subunit also made their first appearance on Mnet’s M! Countdown. 

Members and Positions

Loona odd eye circle members

This 2nd unit of Loona consists of three super talented members, let’s check it out here:

  • Kim Lip: Leader, Main Dancer, Main Vocalist
loona sub unit memebr

Besides being the leader, Kim Lip is also the main dancer and main vocal. On May 11th, 2017, Kim Lip was the first member to be revealed. Then 12 days later, more precisely on May 23rd, 2017, she released her solo single Kim Lip with the title track “Eclipse”.

  • JinSoul: Lead Vocalist, Main Rapper, Visual
loona odd eye circle member

JinSoul was the 2nd member to be revealed of this unit on June 13th, 2017. Then on June 26th, 2017, she officially released her single JinSoul with the title track named “Singing in the Rain”.

  • Choerry: Maknae, Lead Dancer, Sub-vocalist, Lead Rapper
loona sub unit member

This maknae of the unit is full of million talents, especially in dancing. As proof, she was chosen to be the center of Loona Odd Eye Circle. She was the last member to be revealed and debuted with her single album released on July 28th, 2017, named Choerry and the title track “Love Cherry Moon”.

Loona Odd Eye Circle Discography

loona odd eye circle member


Album Title Track Year
Mix & Match Girl Front 2017
Loonatic (English Ver.)
Sweet Crazy Love


Reissues & Extended Plays

Album Type Title Tracklist Release Date
Extended Play Mix & Match Odd September 21st, 2017
Girl Front
Reissue Album Add October 31st, 2017
Sweet Crazy Love
Girl Front
Odd Front

Loona YYXY

loona yyxy profile

The last unit is Loona yyxy and consists of 4 members, namely Yves, Chuu, Go Won, and Olivia Hye. This unit was formed and debuted on May 30th, 2018, with their first Extended Play (EP) named Beauty & the Beat featuring a Canadian musician, Grimes with the title track “love4eva.” Here’s the music video!

On May 19th, 2018, this unit released their teaser photo for the single “lov4eva”. Meanwhile, on May 24th, they revealed the concept photo of the group. This unit also made their debut stage on Mnet’s M! Countdown on June 7th, 2018.

Members and Positions

loona yyxy member
  • Yves: Leader, Main Dancer, Lead Vocalist, Visual
loona yyxy profile

This leader was revealed on November 14th, 2017, as part of this group. On November 28th, 2017, she debuted by releasing her single album named Yves with the title track “New”.

  • Chuu: Main Vocalist
loona yyxy chuu profile

Different from Yves, Chuu was the 2nd member who was introduced as part of this unit. She was revealed on December 14th, 2017, and she released her first pre-debut solo Chuu with the title track “Heart Attack” on December 27th, 2017.

  • Go Won: Lead Dancer, Main Rapper, Vocalist, Visual
loona yyxy go won

After Chuu, Go Won was revealed on January 14th, 2018, then two weeks later, or precisely on January 30th, she released her solo single Go Won with the title track “One&Only”. Not only she is the lead dancer and main rapper, but Go Won is also the center of the unit.

  • Olivia Hye: Lead Rapper, Lead Dancer, Maknae, Sub-vocalist
loona yyxy olivia hye profile

The last member is Olivia Hye. She was revealed on March 17th, 2018, with her photo teaser. This maknae of the unit also released her first single with two tracks on March 29th, 2018, titled “Egoist” featuring JinSoul and “Rosy.”

Loona YYXY Discography

loona sub unit


Album Title Track Year
Beauty & the Beat Love4eva (featuring Grimes) 2018


Extended Plays

Album Tracklist Release Date
Beauty & the Beat Dal segno May 30th, 2018
One way
Rendezvous 18.6y


So, that’s all the information regarding LOONA’s subunits, namely Loona 1/3, Loona Odd Eye Circle, and Loona yyxy. After reading this article, what do you think about these three subunits? Please, kindly drop a line with your thoughts in the comment section, and don’t forget to follow our Twitter @CKoreaOfficial.