Park Jae-jung to południowokoreański wokalista znany z emocjonalnego wykonania koreańskich ballad i R&B. Jest związany z wytwórnią Romantic Factory.
Original Song (The Live Album) ukazał się 24 kwietnia 2025 roku i zawiera koncertowe nagrania z trasy w latach 2022–2024 – konkretnie z występów Letter 1.5 (2022), Alone (2023) i And (2024). Album zawiera łącznie 13 utworów. Do CD dołączono 16-stronicowy booklet i 16-stronicową fotoksiążkę.
Utwory
1. 자작곡 (Your Song)
2. 한 걸음 (Love Message) [2023 "Alone" Live]
3. 가사 (Words) [2024 "And" Live]
4. 헤어지자 말해요 (Let's Say Goodbye) [2023 "Alone" Live]
5. 같은 사랑 같은 이별 (Our Love) (With 김창운) [2024 "And" Live]
6. B에게 쓰는 편지 (A Letter To B) [2022 "Letter 1.5" Live]
7. 사랑한 만큼 (As much as I loved you) [2024 "And" Live]
8. 세레나데 (Serenade) [2023 "Alone" Live]
9. 그날의 너 (From That Day) [2022 "Letter 1.5" Live]
10. 일상 (Life) [2023 "Alone" Live]
11. 좋았는데 (I Loved You) [2023 "Alone" Live]
12. 다시 태어날 수 있다면 (If Only) [2023 "Alone" Live]
13. Curtain Call – 좋았는데 (Curtain Call – I Loved You) [2024 "And" Live]
2. 한 걸음 (Love Message) [2023 "Alone" Live]
3. 가사 (Words) [2024 "And" Live]
4. 헤어지자 말해요 (Let's Say Goodbye) [2023 "Alone" Live]
5. 같은 사랑 같은 이별 (Our Love) (With 김창운) [2024 "And" Live]
6. B에게 쓰는 편지 (A Letter To B) [2022 "Letter 1.5" Live]
7. 사랑한 만큼 (As much as I loved you) [2024 "And" Live]
8. 세레나데 (Serenade) [2023 "Alone" Live]
9. 그날의 너 (From That Day) [2022 "Letter 1.5" Live]
10. 일상 (Life) [2023 "Alone" Live]
11. 좋았는데 (I Loved You) [2023 "Alone" Live]
12. 다시 태어날 수 있다면 (If Only) [2023 "Alone" Live]
13. Curtain Call – 좋았는데 (Curtain Call – I Loved You) [2024 "And" Live]
