JTBC's "Sing Again - Unknown Singer Season 4" TOP7 new songs will be released. This program is a reboot audition that gives unknown singers another chance, and the new songs of the TOP7 will be released on various music sites at 6 PM on December 24. The final TOP7 was decided in the broadcast on December 23, where the participants drew empathy and support from viewers through sincere performances.

This release includes the songs for the "New Song Mission" to be held in the first final broadcast on December 30. Famous producers from South Korea participated to create new songs that highlight each participant's individuality and strengths. Various producers such as Gureum, GroovyRoom, 10CM, Kim Do-hoon, An Shin-ae & Kwon Ji-yoon, Kim Hyung-seok, and Jo Won-sang (LUCY) present songs for the TOP7 participants.

Kim Ye-chan's "Let's Not Regret (Prod. Gureum)" is based on a modern rock sound, with Kim Ye-chan personally involved in writing the lyrics, conveying a sincere message. The calm yet deep emotional vocals enhance the lingering effect of the song.

Kim Jae-min (Kimfunny)'s "Fancy Like This (Prod. GroovyRoom)" is a song that adds energetic gospel feelings over a strong punk groove. The ad-libs that intensify toward the latter part and Kim Jae-min's distinctive voice preview the energy of the live stage.

Kyuri's "Even If It's a Heart No One Will Accept (Prod. 10CM)" was inspired by the tension of the audition stage. Kyuri's delicate singing completes the deep emotional line.

Gwyn Dorado's "I Want You (Prod. Kim Do-hoon)" is a folk rock ballad featuring a simple acoustic melody and a poignant voice. The addition of band sounds later heightens the emotion, and Gwyn Dorado's powerful vocals maximize the song's immersion.

Seodo's "It's Love (Prod. An Shin-ae & Kwon Ji-yoon)" is a song that compares love to stars. With restrained and solid emotional vocals, Seodo shows a new charm.

Slowly's "Wait For Me (Prod. Kim Hyung-seok)" is a traditional ballad with an impressive development that delicately builds emotions. Slowly's deep vocals in the latter part deliver a profound resonance.

Lee Oh-wook's "Not Afraid (Prod. Jo Won-sang (LUCY))" carries a message of taking a step forward while embracing fear beyond anxiety. The clear melody and refreshing rock sound arrangement convey energy.

Meanwhile, the participants of "Sing Again 4" will hold a nationwide tour concert starting February 2025. The cast, including the final TOP10, will communicate with fans in Busan, Seoul, Incheon, Daegu, and other cities, beginning with the Busan performance on February 7. It will be an opportunity to enjoy the competition songs performed on the show live, delivering vivid emotions and thrills to fans.

Concert tickets will be opened sequentially from 1 PM on December 24. Ticket sales for the Busan concert start at 1 PM, Seoul at 2 PM, Incheon at 3 PM, and Daegu at 4 PM. "Sing Again 4" is a program that gives unknown singers another chance and has produced major artists such as Lee Seung-yoon, Lee Mu-jin, Hong Isaak, and So Soo-bin, receiving strong love from its dedicated fanbase. The final TOP7 contestants were decided in the broadcast on December 23, raising expectations.