Singer THE ONE participates in the OST of JTBC's monthly drama 'Chief of Staff 2: People Who Make the World.'

The third OST "Can't Let Go" from the JTBC drama "Chief of Staff 2" was released at 6 p.m. on Nov. 25, involving The One, which has captivated the hearts of risers with his signature deep sensibilities.

"Can't Let Go" is a song that highlights The One's mournful tone and loneliness. It takes on the main theme of "Chief of Staff 2." Jang Tae-joon's theme song "Can't Let Go," which is about running hard to become a lawmaker and losing precious people and enduring insults and disgrace, is a song filled with a sense of loneliness and desperation throughout the song.

The voice of "The One," a Korean high-end vocalist, above the heavy piano accompaniment, creates a wave of passionate emotion throughout the hearing, reciting the longing of a lonely man.

The One is a leading vocalist of Korea, loved for his outstanding singing ability, and has been actively engaged in various musical activities at home and abroad.  Also, He has been loved by many people for participating in such high-end dramas as 'Winter Love' and 'Dear Love.'

JTBC's Wolhwa drama "Chief of Staff 2" is a drama about the fierce battle of "National Assemblyman Jang Tae-joon" racing to change the world with ambition, which airs every Monday and Tuesday night at 9:30 p.m.

Meanwhile, the third OST "Can't Let Go" from "Chief of Staff 2" involving The One was released at 6 p.m. on Nov. 25.