Lee Sang-woo's Son Lee Do-hun Is the Vocalist and Composer of can't be blue: The Band's Activities Come to Light After 2600 Million Views
Singer Lee Sang-woo's second son is Lee Do-hun of the band can't be blue. According to broadcast materials released by KBS as of 2026-09-09, Lee Sang-woo's second son, whom he taught music from the age of four, has grown into the vocalist and composer of can't be blue. The materials also introduced the band as having recorded 2,600 million views. However, the publicly available materials do not specify whether those 2,600 million views came from one particular video or represented the combined views of multiple pieces of content.
What Role Does Lee Sang-woo's Second Son, Lee Do-hun, Play in can't be blue?
Lee Do-hun is active as both a vocalist and a composer who creates music himself in can't be blue. He is not simply the son of a famous singer participating in a band. Music credits confirm that he contributes vocals as well as lyrics and compositions to the band's actual recording process.
The current members listed on the official can't be blue website are LEE DOHUN, LEE HWUIWON, KIM CHAEHYUN, KWON DAHYUN, and KIM DAEHUN, making it a 5-member band. The music streaming service Genie also lists Lee Hwi-won, Kwon Da-hyun, dohun, Kim Chae-hyun, and Kim Dae-hun as members.
Lee Do-hun's musical contributions can also be verified through a song released in 2024. The can't be blue track '사랑이라 했던 말 속에서' was composed by Lee Do-hun, Kim Chae-hyun, and Kwon Da-hyun, with lyrics written by Lee Do-hun. He also performed the vocals and contributed synthesizer and bell parts.
For this reason, simply saying that 'Lee Sang-woo's son debuted as a singer' does not fully describe Lee Do-hun's current activities. He is better characterized as a singer-songwriter within can't be blue, performing vocals while also creating music.
When Did can't be blue Begin Its Activities?
The official debut year registered for can't be blue on music streaming services is 2024. The band released '사랑이라 했던 말 속에서' on 2024-06-20, followed by 'Blue Vinyl' on August of the same year. It continued releasing music in 2025 and 2026.
The band's activities expanded further in 2026. It released the EP 'Prussian Blue' on January, 'can't love' on May, and its first full-length studio album, 'can't be blue', featuring 11 tracks, on June. The album includes 'can't love (Feat. HAN (Stray Kids))', 'blue daisy', and 'First Sight', among other songs.
The publicly documented history shows that can't be blue is not a temporary project band that briefly attracted attention with a debut single. It is a 5-member band that has continued releasing albums and performing live.
What Do the 2600 Million Views Refer To?
In its announcement for the television program 'Hwang Shin-hye's Let's Live Together', released on 2026-09-08, KBS described Lee Sang-woo's second son as the vocalist and composer of can't be blue, a band that had recorded 2,600 million views. The same information appeared in several news reports published ahead of the broadcast.
The important distinction here is what the view count actually covers. Although the KBS materials describe can't be blue as 'a band that recorded 2,600 million views', they do not identify which content on which platform generated those 2,600 million views. Therefore, the verified original source does not support claims that 'one video featuring Lee Do-hun personally received 2,600 million views' or that 'a particular music video received exactly 2,600 million views'.
Earlier materials also indicate that can't be blue had already attracted considerable attention online. A concert introduction published on February 2025 mentioned 300 million music views associated with the band's debut single and 150 million Reels views. However, these figures and the 2,600 million views reported by KBS in 2026 cover different measurement periods and scopes. It would therefore be inappropriate to simply add them together or calculate a growth rate from them.
How Much Is Known About the Musical Connection Between Lee Sang-woo and Lee Do-hun?
According to KBS, Lee Sang-woo said that he began teaching his second son music when the boy was four years old. Lee Do-hun subsequently became active as the vocalist and composer of can't be blue.
That is the extent of what can be directly confirmed from the currently available materials. The verified original sources do not explain exactly how Lee Sang-woo provided his son's musical education or how extensively he may have been involved in individual can't be blue songs or the band's musical direction.
One interesting detail appears in the agency information on the official can't be blue website. The website identifies the agency as 고양이수염 (Cat Whiskers) and lists Lee Sang-woo and Lee In-ja as its chief executives. However, the page itself does not explicitly state that the Lee Sang-woo named there is the singer Lee Sang-woo. Their identities should therefore not be assumed to be the same based solely on the name.
Which Songs Should You Start With to Explore can't be blue's Music Today?
For anyone who wants to verify Lee Do-hun's vocal and creative contributions firsthand, the band's first release, '사랑이라 했던 말 속에서', is the clearest starting point. Its published credits identify him as the lyricist, a co-composer, and the vocalist, allowing listeners to see his various roles within can't be blue through a single song.
To explore the band's later work, listeners can move on to its 2026 full-length album, its 1 studio album. The album contains 11 tracks, including 'can't love (feat. HAN (Stray Kids))', 'blue daisy', 'First Sight', and 'Focus'.
Ultimately, the key information that emerged following Lee Sang-woo's television appearance on September 2026 is about more than a family relationship. Lee Sang-woo's second son, Lee Do-hun, is an active vocalist and creative member of can't be blue, a band that has been releasing music since 2024. The group has continued its activities, releasing its first full-length studio album in 2026.
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