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LIGHTSUM

Lightsum: The Hopeful Six

Lightsum, commonly stylized as LIGHTSUM, is a South Korean girl group formed by Cube Entertainment. The group debuted on June 10, 2021, with the release of their debut single album, Vanilla. The group was originally an eight-piece ensemble, but members Huiyeon and Jian departed the group in October 2022. The six-member group consists of Sangah, Chowon, Nayoung, Hina, Juhyeon, and Yujeong.

Origins of the Name

The group's name, Lightsum, is a combination of the words "light" and "sum." It symbolizes the idea that "things that shine small gather together to light up the world, delivering greater positive energy through a message of hope".[1]

Pre-debut Activities

Before debuting, some members of Lightsum participated in popular Korean reality shows. Juhyeon was a contestant on The Unit: Idol Rebooting Project in 2017โ€“2018, where she finished in 25th place. Chowon, Nayoung, and Yujeong participated in Produce 48 in 2018, where they finished in 13th, 21st, and 51st place, respectively. However, it was later revealed that Chowon was rigged out of the lineup of Iz*One, and that her real final ranking was 6th place. Juhyeon also participated in Dancing High in 2018, but did not pass the evaluation round. Chowon was later cast in Bully Bad Guys and The Dominator 3: Junior Bullies in 2020.

Debut and Discography

On April 15, 2021, Cube Entertainment announced the debut of Lightsum, the first girl group debut from the agency since (G)I-dle in 2018. The members were revealed in pairs from April 19 to 22, with a video trailer featuring all eight members released on April 23. On May 27, the group announced the release of their debut single album, Vanilla, which was released on June 10, 2021. Lightsum's debut performance was on Mnet's M Countdown on the same day.

On October 13, 2021, Lightsum released their second single album, Light a Wish, with "Vivace" as the lead single. Their first extended play, Into the Light, was released on May 24, 2022, with "Alive" serving as the lead single. The EP was praised for its diverse range of music styles and strong vocal performances.

Member Changes

In October 2022, Cube Entertainment announced that members Huiyeon and Jian would be leaving the group, and that Lightsum would be reorganized as a group of six. Despite the changes, the group remains strong and continues to show their talent and passion for music.

Members

The current members of Lightsum are Sangah, Chowon, Nayoung, Hina, Juhyeon, and Yujeong. Despite the departure of Huiyeon and Jian, the six members continue to impress fans and the music industry with their talent, energy, and hopefulness for the future.


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Image for [Hina] I was so happy to talk with Some It after a long time todayโ€ฆ ๐Ÿฅฒ๐Ÿ’– It really warmed my heart. It was a time I wanted haha Thank you so much for always being by my side Let's make happy memories together in the future I love you a lot โค https://t.co/rQiJNd2D6W

[Hina] I was so happy to talk with Some It after a long time todayโ€ฆ ๐Ÿฅฒ๐Ÿ’– It really warmed my heart. It was a time I wanted haha Thank you so much for always being by my side Let's make happy memories together in the future I love you a lot โค https://t.co/rQiJNd2D6W

[original] [#ํžˆ๋‚˜] ์˜ค๋Š˜ ์ด๋ ‡๊ฒŒ ์˜ค๋žœ๋งŒ์— ์ธ์ž‡์ด๋ž‘ ์–˜๊ธฐํ•ด์„œ ๋„ˆ๋ฌด ํ–‰๋ณตํ–ˆ์–ด์—ฌโ€ฆ ๐Ÿฅฒ๐Ÿ’– ์ •๋ง ๋งˆ์Œ์ด ๋”ฐ๋œปํ•ด์ง€๋Š” ๊ธฐ๋ถ„์ด์—ˆ๊ตฌ ์—ญ์‹œ ์ธ์ž‡์ด๊ตฌ๋‚˜!! ์‹ถ์€ ์‹œ๊ฐ„์ด์—ˆ์–ด์š” ใ…Žใ…Ž ํ•ญ์ƒ ์˜†์— ์žˆ์–ด์ค˜์„œ ๋„ˆ๋ฌด ๊ณ ๋ง™๊ตฌ ์šฐ๋ฆฌ ์•ž์œผ๋กœ๋„ ๊ฐ™์ด ํ–‰๋ณตํ•œ ์ถ”์–ต ๋งŒ๋“ค์–ด์šฉ ๋‚ด๊ฐ€ ๋งŽ์ด ๋งŽ์ด ์‚ฌ๋ž‘ํ•ด โค https://t.co/rQiJNd2D6W

Image for [Joohyun] Some it ๐Ÿ’™ It's the weekend, what did you spend your day doing? I saw the exhibition~ I also saw the cherry blossoms while taking a walk! I miss you so much good night everyone! Make sure to eat well ๐Ÿฅฐ https://t.co/otLP1OVZj8

[Joohyun] Some it ๐Ÿ’™ It's the weekend, what did you spend your day doing? I saw the exhibition~ I also saw the cherry blossoms while taking a walk! I miss you so much good night everyone! Make sure to eat well ๐Ÿฅฐ https://t.co/otLP1OVZj8

[original] [#์ฃผํ˜„] ์ธ์ž‡ ๐Ÿ’™ ์ฃผ๋ง์ธ๋ฐ ์˜ค๋Š˜ ํ•˜๋ฃจ ๋ญํ•˜๋ฉด์„œ ๋ณด๋ƒˆ์–ด์š”? ์ €๋Š” ์ „์‹œ๋„ ๋ณด๊ณ ~ ์‚ฐ์ฑ…ํ•˜๋ฉด์„œ ๋ฒš๊ฝƒ ๊ตฌ๊ฒฝ๋„ ํ–ˆ๋‹ต๋‹ˆ๋‹ค์•„! ๋„˜ ๋ณด๊ณ ์‹ถ๋‹ค์•„ ๋‹ค๋“ค ์ž˜ ์ž๊ตฌ! ๋ฐฅ ๊ผญ ์ž˜ ์ฑ™๊ฒจ๋จน๊ธฐ์ด ๐Ÿฅฐ https://t.co/otLP1OVZj8

Image for [Chowon] The mention party after a long time was so much fun! I think I can start the day better with Some It hehe I tried hard to answer, but I don't know if it would have been okay!! Haha Let's talk more next time! Until then, eat well!! Have a happy day today, Some It Then bye bye ๐Ÿ’—๐Ÿ’— https://t.co/56roOhUxrd

[Chowon] The mention party after a long time was so much fun! I think I can start the day better with Some It hehe I tried hard to answer, but I don't know if it would have been okay!! Haha Let's talk more next time! Until then, eat well!! Have a happy day today, Some It Then bye bye ๐Ÿ’—๐Ÿ’— https://t.co/56roOhUxrd

[original] [#์ดˆ์›] ์˜ค๋žœ๋งŒ์— ๋ฉ˜์…˜ ํŒŒํ‹ฐ ๋„ˆ๋ฌด ์ฆ๊ฑฐ์› ์–ด์š”์˜ค! ํ•˜๋ฃจ์˜ ์‹œ์ž‘์„ ์ธ์ž‡๊ณผ ํ•จ๊ป˜ํ•˜๋‹ˆ ๋” ์ž˜ ๋ณด๋‚ผ ์ˆ˜ ์žˆ์„ ๊ฒƒ ๊ฐ™์•„์š” ํ—คํ—ค ์—ด์‹ฌํžˆ ๋‹ตํ•˜๋ ค๊ณ  ๋…ธ๋ ฅํ–ˆ๋Š”๋ฐ ๊ดœ์ฐฎ์•˜์„์ง€ ๋ชจ๋ฅด๊ฒ ์–ด์š”!! ใ…Žใ…Ž ๋‹ด์—๋Š” ๋” ๋งŽ์ด ๋งŽ์ด ์–˜๊ธฐ ๋‚˜๋ˆ ์š”! ๊ทธ๋•Œ๊นŒ์ง€ ๋ฐฅ ์ž˜ ์ฑ™๊ฒจ ๋จน๊ตฌ!! ์˜ค๋Š˜ ํ•˜๋ฃจ๋„ ํ–‰๋ณตํ•œ ํ•˜๋ฃจ ๋ณด๋‚ด์š” ์ธ์ž‡ ๊ทธ๋Ÿผ ์•ˆ๋…€์—‰ ๐Ÿ’—๐Ÿ’— https://t.co/56roOhUxrd

Image for [Joohyun] Everyone,,, Hurry up,,, Turn on YouTube and watch Chowon-ni left and right... (faints out) It's so pretty... It's nostalgic... Watch it right now,, ๐Ÿฅน Thank you for the great video ๐ŸŽž๐Ÿฟ https://t.co/pkFHBahSnB

[Joohyun] Everyone,,, Hurry up,,, Turn on YouTube and watch Chowon-ni left and right... (faints out) It's so pretty... It's nostalgic... Watch it right now,, ๐Ÿฅน Thank you for the great video ๐ŸŽž๐Ÿฟ https://t.co/pkFHBahSnB

[original] [#์ฃผํ˜„] ์—ฌ๋Ÿฌ๋ถ„,,, ์–ผ๋ฅธ,,, ์œ ํŠœ๋ธŒ ํ‹€๊ณ  ์ดˆ์› ์–ธ๋‹ˆ ์ขŒ์šฐ๋งน,,, ๋ณด์„ธ์š”.. (๊ธฐ์ ˆ) ๋„ˆ๋ฌด๋„ˆ๋ฌด ์˜ˆ์˜๊ณ ... ์•„๋ จํ•˜๊ณ ... ๋‹น์žฅ ๋ณด๋ผ๊ตฌ์šฐ,, ๐Ÿฅน ์ข‹์€ ์˜์ƒ ๊ฐ์‚ฌํ•ฉ๋‹ˆ๋‹ค์•„ ๐ŸŽž๐Ÿฟ https://t.co/pkFHBahSnB

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