How can I tell which songs Jukjae appears on as a feature?

Streaming credits list it separately from the main artist, as "Feat. Jukjae." "Pyeonghaengseon" and "Dallajyeoss-eulkka, Uri" on this list are good examples, where another artist leads the track and Jukjae adds a vocal layer.

Which shows has Jukjae contributed OST tracks to?

He has songs on the dramas "Nevertheless," "Motel California," and "The Perfect Family," and the travel show "Traveler: Argentina." Most streaming services list these under the show's OST album tab.

Should I start with the collaborations or the solo tracks?

If his voice is still unfamiliar, start with the solo material to learn its texture first. Once that's set, the collaborations make it much easier to hear how he creates a different color against another artist.

Jukjae Features & OST Tracks: 8 Songs to Know

When Jukjae's Name Shares the Credit — 8 Features and OST Tracks

Four collaborations with other artists and four drama and variety-show OST tracks, showing how Jukjae's role shifts from song to song.

On his own albums, Jukjae is usually the center of the song. In features and OSTs, that position keeps shifting — sometimes he leads as the main vocalist, sometimes he steps into someone else's track and adds just one layer of voice. This list splits eight songs into four collaborations and four drama or variety-show OSTs, organized around that shift in position.

For the collaborations, the question is how his voice and the other artist's mix together. For the OSTs, it's whether the scene comes through even without watching the screen. Listen through in order and it becomes clear how differently the same voice can be used depending on context.