LUCY's Choi Sang-yeop participates in 'Bad Prosecutor' OST... Rock sound emphasizing guitar and drums

Choi Sang-yeop, the vocalist of the band LUCY, has participated in the OST for the KBS2 Wednesday-Thursday drama 'Bad Prosecutor' (directed by Kim Sung-ho, written by Im Yeong-bin). According to the video description released by STONE MUSIC on September 30, 2026, this song is 'Little Star', in which Choi Sang-yeop participated as the second singer for the 'Bad Prosecutor' OST.

Rock sound centered on guitar performance and drums

The released song 'Little Star' is a rock song that adds an addictive guitar performance and an exciting drum sound. The composition of the song is designed so that anyone can easily catch the rhythm, and to this, the sweet yet deep tone of LUCY main vocalist Choi Sang-yeop is added. Choi Sang-yeop's refreshing and cool voice shows characteristics that blend well with the song. The production team stated that Choi Sang-yeop's unique voice will maximize the comic yet refreshing atmosphere of the work.

The message that 'I am a special existence to someone'

The lyrics include the phrase, 'Because at this moment, I am the brightest star to someone.' This contains the message that even if all the people in the world do not recognize it, one is special to someone. Nmore, Jozu, and Jeon Jenny participated in the lyrics and composition of the song, while Nmore and Kim Seung-jun were in charge of the arrangement. Jeon Jenny participated as the producer, and Lee Kang-uk, Song Ha-yoon, and Yang Min-hyeok were listed as Co-Producers.

Various personnel participated in the music production. Kim Seung-jun played the guitar, Lee Dong-hyeok played the bass, and Nmore played the keyboard. Jozu was in charge of vocal directing, and Jozu and Jeon Jenny participated in the background vocals. Recording was conducted by Jeong Gyu-chang (Gaenari Sound), and Lee Beom-hun was in charge of digital editing. Mixing was performed at Anchor (PRISMFILTER ENGINEERING LAB), and mastering was performed by Kwon Nam-woo (821 Sound Mastering). The Executive Producers for this project were PRISMFILTER MUSIC GROUP and Pagoe Research Institute.