SingAgain4 - Battle of the Unknown, Ep.1 (From the JTBC TV Show)

SingAgain4 - Battle of the Unknown, Ep.1 (From the JTBC TV Show)
Type	Compilation
Artist	Sing Again 4 contestants
Released	October 15, 2025
Format	Download, streaming
Length	14:42
Genre	Folk, acoustic, R&B, ballad
Label	Music Farm SLL
Distributor	Kakao Entertainment
Producer	Studio SLAM (producer) Music Farm, SLL (executive producers)
Music services
Release chronology
Previous	N/A
Next	SingAgain4 - Battle of the Unknown, Ep.2 (From the JTBC TV Show)

SingAgain4 - Battle of the Unknown, Ep.1 (From the JTBC TV Show) (싱어게인4 - 무명가수전 Episode.1) is the first compilation album from the JTBC survival show Sing Again 4. It was released on October 15, 2025 and features covers performed during the first round.

Track list

1. "Iguana (이구아나)" (SingAgain4 Singer No.19 (Lee Sangwoong)) - 2:58
2. "Please Wait for Me (기다려줘)" (SingAgain4 Singer No.23 (sanha)) - 2:42
3. "Hongdae R&B (홍대 R&B)" (SingAgain4 Singer No.37 (Kimfunny)) - 2:49
4. "Butterfly Effect (나비효과)" (SingAgain4 Singer No.61 (gongwon)) - 2:52
5. "From Mark" (SingAgain4 Singer No.65 (Lee Oh Wook)) - 3:21

Video links

• Episode 1 clips
  • "Iguana"
  • "Please Wait for Me"
  • "Hongdae R&B"
  • "Butterfly Effect"
  • "From Mark"
• Contestant clips
  • "Iguana"
  • "Please Wait for Me"
  • "Hongdae R&B"
  • "Butterfly Effect"
  • "From Mark"
• Fancams
  • "Iguana"
  • "Please Wait for Me"
  • "Hongdae R&B"
  • "Butterfly Effect"
  • "From Mark"
• Official audio