Heon Seo

- All Blue
- EXchange3, Pt. 8 (Original Soundtrack) - EP · 2024
- You Never Know
- The Divorce Insurance, Pt. 3 (Original Soundtrack) - Single · 2025
- Stars (English Version)
- Serendipity's Embrace (Original Soundtrack) Pt.2 - Single · 2024
- Cocoa
- COCOA - Single · 2025
- Hero
- Hero - Single · 2024
- Before Sunrise
- Before Sunrise - Single · 2026
- Onward
- Onward - Single · 2023
- BAD IDEA
- BAD IDEA - Single · 2024
- Hijack
- Hijack - Single · 2024
- Halo
- HALO - Single · 2024

Before Sunrise - Single

Before Sunrise - Single

2026
One Hunnit - Single

One Hunnit - Single

2025
The Divorce Insurance, Pt. 3 (Original Soundtrack) - Single

The Divorce Insurance, Pt. 3 (Original Soundtrack) - Single

2025
COCOA - Single

COCOA - Single

2025
Come Home - Single

Come Home - Single

2024
Behind The Scenes : Melody - Single

Behind The Scenes : Melody - Single

2024
HALO - Single

HALO - Single

2024