She learned it from her coach.
BLACKPINK‘s Jennie recently shared a vocal training hack that helped her while recording her solo album, Ruby.

Recently, the idol appeared on the popular YouTube show, Hot Ones, and discussed everything from her album’s creative process to her journey as a soloist, while munching on some really spicy chicken wings.

When the host asked her to share any specific technique she learned from a vocal coach that helped her improve, Jennie had a surprising response. She recalled her very first session with her vocal coach in LA, who made her scream out of a window as loudly as she could.
“It wasn’t to scream in the most beautiful voice or be the loudest,” Jennei explained, adding, “it was to get to that state of releasing everything that’s kind of holding you back.”
The trick actually helped Jennie improve her vocals and get her, in her own words, “to the next level.” This specific exercise helped her realize that “one of the first steps” of powerful vocals was “to just let go.”
While Jennie has always been a powerful performer, her vocals have been a source of heated debate among listeners. However, with Ruby, and her subsequent live performances, the BLACKPINK member has undoubtedly proven her critics wrong.
THE F.T.S. VOCALS OMG#JENNIE #JENCHELLA #COACHELLA #COACHELLA2025 #제니 pic.twitter.com/cxkOPluxvx
— Adele (@itsadeleee) April 21, 2025
Jennie’s angelic vocals during “twin” im cryingggpic.twitter.com/J4BeLDjbCg
— like zen (@acenniex) March 15, 2025
Meanwhile, you could watch the full Hot Ones episode right here: