Hello KoreaHello Korea
  • K-Culture
    • K-POP
    • K-DRAMA
  • K-Food
    • Restaurant & Cafe
    • Recipe
  • Travel
  • Learn Korean
  • Contact
  • English
    • English
    • Bahasa Indonesia
    • Tiếng Việt
    • ไทย
Reading: LIGHTSUM’s Unit Debuts with “Beautiful and Painful”: Emotional Release 💔
Share
Notification Show More
Font ResizerAa
Hello KoreaHello Korea
Font ResizerAa
  • K-Culture
  • K-Food
  • Travel
  • Learn Korean
  • Contact
  • English
Search
  • K-Culture
    • K-POP
    • K-DRAMA
  • K-Food
    • Restaurant & Cafe
    • Recipe
  • Travel
  • Learn Korean
  • Contact
  • English
    • English
    • Bahasa Indonesia
    • Tiếng Việt
    • ไทย
Follow US
  • Advertise
© 2025 Hello Korea. All Rights Reserved.
Hello Korea > Blog > K-POP > LIGHTSUM’s Unit Debuts with “Beautiful and Painful”: Emotional Release 💔
K-POP

LIGHTSUM’s Unit Debuts with “Beautiful and Painful”: Emotional Release 💔

Last updated: 2026-01-13 4:30 pm
Hello Korea Editor
3 Min Read
SHARE

LIGHTSUM’s Unit Debut: “Beautiful and Painful” Sets a Strategic Tone for 2026 K-Pop! 🚀🎶

In a significant move poised to capture global attention, K-Pop powerhouse LIGHTSUM has officially launched its first-ever unit, featuring members Sangah, Chowon, and Juhyeon. This highly anticipated debut isn’t just a new chapter for the group; it’s a strategic reinterpretation of a beloved classic, signaling a dynamic start to their 2026 activities.

Hello Korea has been closely watching as the trio prepares to deliver a deeply emotional performance with their digital single, “Beautiful and Painful.” The track is a heartfelt re-imagining of veteran group BTOB‘s iconic song from 2018, promising a fresh yet poignant take on a fan favorite.

The unit first hinted at their arrival on January 12th, captivating fans with a live clip teaser video released across LIGHTSUM‘s official SNS channels. The preview showcased Sangah, Chowon, and Juhyeon in sophisticated off-shoulder and jacket stylings, embodying a pristine, luxurious aesthetic that perfectly complemented the song’s melancholic mood. A particular highlight was Chowon‘s pure and clear vocals, which left a lasting impression as the lights faded, creating a serene, lingering afterglow.

The buzz surrounding this release intensified following an exclusive listening session where industry peers like Jo Kwon, Ha Sungwoon, and Hui offered their early critiques. All were effusive in their praise for LIGHTSUM‘s rendition of “Beautiful and Painful,” further fueling anticipation for its official drop.

This unit debut marks a strategic exploration of new sonic territories and showcases a different synergy from the full group’s dynamic performances. It’s a testament to LIGHTSUM‘s versatility and CUBE Entertainment’s innovative approach to artist development.

Mark your calendars: LIGHTSUM‘s unit single “Beautiful and Painful” is set to release on January 15th at 6 PM KST across all major music streaming platforms. This is one debut you won’t want to miss as it sets the standard for unit activities in the new year.

Releasing a cover of a beloved song from a senior group is a clever move, leveraging existing IP while showcasing new facets of the artists. This strategy allows for broader audience reach and positions the unit as a fresh yet nostalgic force in the competitive landscape.

Editor: Alex Kim 💻

IVE REVIVE+ Teases Cinematic Comeback With Director’s Cut
KATSEYE Lights Up Super Bowl Ad, Global Reach Soars
Bruno Mars Rosé Pizza: Post-Grammy Chill & Global Cheers
JAY PARK’S SECRET WEAPON IS FINALLY HERE?! You Won’t BELIEVE What’s Dropping TODAY!
BOYNEXTDOOR Dominates 2025 with Special Domestic, Global Performances 🎤
Share your thoughts!
Love0
Cry0
Sad0
Angry0
Wink0
Previous Article Kiki Releases “Delulu” Track Film, Showcasing Musical Growth 🎼
Next Article LE SSERAFIM Sakura Becomes First K-Pop Artist for Felissimo 🌸

Latest News

KiiKii’s ‘404’ Zenith: Dominating Charts with Irresistible Charm
K-POP
2026-02-13
Park Jung-min Transforms: The Cold Allure of Humint’s Melodrama
K-Movie
2026-02-13
Miyeon Breathtaking Beauty: (G)I-DLE Star Shines Like a Flower
K-POP
2026-02-13
Jennie Silla Crown: MV Outfit Helps Ace History Exam!
K-POP
2026-02-13
Weather
3°C
Seoul
scattered clouds
3° _ 3°
44%
1 km/h
Wed
9 °C
Thu
12 °C
Fri
11 °C
Sat
10 °C
Sun
6 °C

Birthday List (Weekly)

tripleS Kotone Official Profile Birthday Profile PhotoTODAY 🎂
tripleS Kotone Official Profile 🎂
tripleS
Mar 10
tripleS Kotone Official Profile Birthday Profile PhotoTODAY 🎂
tripleS Kotone Official Profile 🎂
tripleS
Mar 10
BTOB Peniel Official Profile Birthday Profile PhotoTODAY 🎂
BTOB Peniel Official Profile 🎂
BTOB
Mar 10
ALPHA DRIVE ONE Xinlong Official Profile Birthday Profile Photo
ALPHA DRIVE ONE Xinlong Official Profile
ALPHA DRIVE ONE
Mar 11
KickFlip Donghwa Official Profile Birthday Profile Photo
KickFlip Donghwa Official Profile
KickFlip
Mar 11
Kep1er Hikaru Official Profile Birthday Profile Photo
Kep1er Hikaru Official Profile
Kep1er
Mar 12
KickFlip Donghyeon Official Profile Birthday Profile Photo
KickFlip Donghyeon Official Profile
KickFlip
Mar 13
STAYC Sumin Official Profile Birthday Profile Photo
STAYC Sumin Official Profile
STAYC
Mar 13
TXT Beomgyu Official Profile Birthday Profile Photo
TXT Beomgyu Official Profile
TXT
Mar 13
KickFlip Donghyeon Official Profile Birthday Profile Photo
KickFlip Donghyeon Official Profile
KickFlip
Mar 13
TREASURE Jihoon Official Profile Birthday Profile Photo
TREASURE Jihoon Official Profile
TREASURE
Mar 14
ASTRO Jinjin Official Profile Birthday Profile Photo
ASTRO Jinjin Official Profile
ASTRO
Mar 15
XODIAC Lex Official Profile Birthday Profile Photo
XODIAC Lex Official Profile
XODIAC
Mar 16

//

Hello Korea – Real stories, real culture. Discover Korea through the lens of Seoul-based experts. Curating the best of K-Pop, Travel, and daily life for the global audience.

Quick Link

  • Privacy Policy
  • Contact

Our Global Site

  • Bahasa IndonésiaBahasa Indonésia
  • tiếng Việttiếng Việt
  • ภาษาไทยภาษาไทย
Hello KoreaHello Korea
© 2025 Hello Korea. All Rights Reserved.
Welcome Back!

Sign in to your account

Username or Email Address
Password

Lost your password?