J.Seph

Kim Tae-hyung (김태형), known professionally as J.Seph, gives KARD much of its structural balance. In a co-ed group built on contrast, his value comes from control. He keeps the music grounded when the production swings into heavier club rhythms or sharper performance tracks, which is why his role inside KARD often feels bigger than a typical rap position.

That identity was shaped long before the official debut. J.Seph trained under DSP Media during an earlier BM-and-J.Seph duo plan before KARD evolved into a four-member act. The final lineup made better use of his pacing, restraint, and timing. On records like Hola Hola, Icky, Where To Now? (Pt. 1 : Yellow Light), and Drift, he works like the member who keeps the group's mix from tipping too far in any one direction.

His military service from 2020 to 2022 interrupted that run, but it also clarified how important he is to KARD's chemistry. Since returning, he has slotted back into the group's catalog naturally while also taking on soundtrack work, including Love Bloomed Sweetly in 2025. In practical terms, J.Seph remains one of the clearest examples of how steadiness can become a signature in an idol group built around movement.