Saturday, April 25, 2026

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Wanna One's Kim Jaehwan: "My high notes opened up after going on 'Produce 101 Season 2'"

SOURCE: 워너원 김재환 “‘프듀2’ 나가서 고음 뚫려”(아형)

Wanna One's Kim Jaehwan revealed that his vocal range increased through practice.

On the episode of JTBC's 'Knowing Bros' that aired on the 25th, Kim Jongseo, Kang Kyunsung, Lim Jeonghee, Wendy, and Kim Jaehwan transferred to the school for a high-note singers special.

In this episode, when asked whether vocal range can be raised through practice, Kim Jaehwan said, "When I first started singing, my range was around G4 or F#4. It increased while I was on 'Produce 101 Season 2.' Now, I can go up to C5 or even D5."

Kim Jongseo added, "You can raise it to a certain extent. You have to rely less on your vocal cords and pull the sound out with your breath. If you practice that, it improves." Wendy also shared, "I'm still practicing," and noted that it can be developed through training, saying, "This is also a muscle."