OldBoy by Justin Lo Song Details

Justin Lo's 'OldBoy' had a release date set for November 7, 2025. With this song being around four minutes long, at 3:53, the duration of this song is pretty average compared to other songs. This track is safe for children and doesn't appear to contain any foul language, since the "Explicit" tag was not present in this track. Since OldBoy only contains only one song in the album, we like to consider this song as a single. Furthermore, we believe that the track originated from Hong Kong. OldBoy is average in popularity right now. In our opinion, the overall tone is not very danceable and projects negative sounds, such as being sad, depressed, or angry.

BPM and Tempo

With OldBoy by Justin Lo having a BPM of 81 with a half-time of 40 BPM and a double-time of 162 BPM, we would consider this track to have a Andante (at a walking pace) tempo marking. Because of this, we believe that the song has an overall slow tempo. The time signature for this track is 4/4.

Music Key

This song is in the music key of D Major. Or for those who are familiar with the camelot wheel, this song has a camelot key of 10B. So, the perfect camelot match for 10B would be either 10B or 11A. While, 11B can give you a low energy boost. For moderate energy boost, you would use 7B and a high energy boost can either be 12B or 5B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 10A or 9B will give you a low energy drop, 1B would be a moderate one, and 8B or 3B would be a high energy drop. Lastly, 7A allows you to change the mood.

Want to find the BPM and music key for other songs? Check out our BPM and Key Finder page!