Dun Dun Dun

"Dun Dun Dun" is track 1 by Solar from Kill Heel Pt. 4, released on April 7, 2022.

• Adrenaline (Inst.)
• Alone People
• Always, be with you (나는 그대고 그대는 나였다)
• Always, be with you (Inst.) (나는 그대고 그대는 나였다 (Inst.))
• A song from the past
• A song from the past (Inst.) (이 노랜 꽤 오래된 거야 (Inst.))