Uploaded March 2025 | Updated September 2026, 3 weeks ago

---

Mashup of Know About Me by Nmixx (엔믹스) and Killer by Key (키).

Videos:
Nmixx: youtube.com/watch?v=aFrQIJ5cbRc
Key: youtube.com/watch?v=dUd_9R_qJSg

More of my Nmixx mashups at youtube.com/playlist?list=PLGOiJw43mmeHHZZtMpHGbvHqaJNwk8igb

All my mashups at youtube.com/playlist?list=PLGOiJw43mmeH7LUAoFx5fb0Dh4b6VR_qK