Overview
- The single '99 Degrees' and its official music video were released across major streaming platforms with Jaehyun saying he hopes the song will bring comfort to listeners.
- SM Entertainment credits list Jaehyun as a co-writer and co-composer on the track, signaling active creative involvement in his solo work.
- '99 Degrees' opens with delicate piano lines and builds into a sweeping arrangement that pulls back at key moments to spotlight Jaehyun’s warm, expressive vocals.
- Early reviews have been mixed: critics widely praise his vocal performance but fault the song’s melodies and arrangement, with one review giving a modest score (rating 7, grade C-).
- The release follows recent fan events and precedes Jaehyun’s planned reunion with NCT 127 for a full-length album scheduled for 24 August and a world tour set to launch in Seoul in September.