Loona 1/3 (; commonly stylized in all caps or LOOΠΔ 1/3) is the first sub-unit of South Korean girl group Loona, formed through a pre-debut project titled "Girl of the Month". The unit consists of four members: Heejin, Hyunjin, Haseul, and Vivi. They debuted on March 13, 2017, with the extended play Love & Live.
History Pre-debut: Revealing of the first three members The first member to be revealed is Heejin on September 26, 2016. She debuted with her single album HeeJin with the title track "ViViD" on October 5. On October 28, Hyunjin was revealed to be the second member. She debuted with her solo album titled HyunJin and the title track "Around You" on November 18. A duet between her and Heejin, titled "I'll Be There", was also released, along with a music video. The next member, Haseul, was revealed on December 8. She debuted through her single album of the same name HaSeul with the title track "Let Me In", released on December 15. Another track titled "The Carol" was released as well, with the three revealed members Heejin, Hyunjin, and Haseul.
2017: Debut with Love & Live, ViVi solo album, and Love & Evil On March 12, 2017, The sub-unit made their first live appearance on SBS's Inkigayo, performing both "You and Me Together" and "Love&Live". A day later, on March 13, they officially debuted with the release of their extended play Love & Live, featuring Heejin, Hyunjin, Haseul, and Vivi. On April 5, ViVi was officially revealed as the fifth member of Loona. Then, she released a solo album named ViVi with the title track "Everyday I Love You", featuring Haseul, on April 17. The sub-unit supposedly cost 4 million dollars to produce, with the music video for their title track being filmed in New Zealand and Hong Kong.
A reissue of their extended play Love & Live, titled Love & Evil was released on April 27 with the addition of two tracks and the new lead single "Sonatine".
Members Haseul () – leader Heejin () Hyunjin () Vivi ()
Discography Extended plays + List of extended plays, with selected details, chart positions and sales Title Details Peak chart positions SalesKOR Love & Live Released: March 13, 2017 Label: Blockberry Creative Formats: CD, digital download, streaming 10 KOR: 7,130Cumulative sales of Mix & Match:
Reissues + List of extended plays, with selected details, chart positions and sales Title Details Peak chart positions SalesKOR USWorld Love & Evil Released: April 27, 2017 Label: Blockberry Creative Formats: CD, digital download, streaming 24 12 KOR: 5,924Cumulative sales of Max & Match:
Singles + List of singles, showing year released and album name Title Year Album "Love&Live" () 2017Love & Live "Sonatine" ()Love & Evil
Videography Music videos Song title Year Director(s) "Love&Live" 2017 Digipedi "You and Me Together" (Special MV) "Sonatine" "Rain 51db"
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