Yui Kobayashi
A Japanese idol who captivated audiences with her cool, sharp-eyed beauty before stepping into a new chapter as a solo model and singer.
Born 1999 (age 27)·Japanese model and member of Keyakizaka46·Birthday: October 23·Generation Z
Biography
Yui Kobayashi, born in 1999, entered the public eye through the rigorous world of Japanese idol groups. She joined the influential Sakamichi Series, becoming a member of Keyakizaka46 (later rebranded as Sakurazaka46) in 2015. Known for a more intense, synchronized performance style and lyrical themes that set them apart from typical idol groups, Kobayashi carved out a space with her distinctive look and quiet intensity. She balanced the demanding schedule of concerts, recordings, and handshake events while also building a parallel career in fashion. Her striking features led to her becoming an exclusive model for the magazine 'JJ,' cementing her status as a style icon for young women. After years with the group, she announced her graduation in 2022, shifting her focus fully to modeling and her solo musical endeavors under the name Yousti. Her transition represents a modern path for idols, leveraging group fame to build a sustainable individual career in the competitive Japanese entertainment landscape.
Generation Z
1997–2012
Born into smartphones, social media, and school shootings. The most diverse generation in history. Pragmatic about money, fluid about identity, anxious about the climate. They do not remember a world before the internet.
Yui was born in 1999, placing them squarely in the Generation Z. The events that shaped this generation — social media, climate anxiety, and a pandemic — shaped the world they entered and the choices available to them.
#1 When Yui Was Born
The biggest hits of 1999
#1 Movie
Star Wars: Episode I
Best Picture
American Beauty
#1 TV Show
ER
Yui's Life & Times
The world at every milestone
1999Born
Columbine shooting; Y2K panic builds
Gas: $1.17/galHome: $113,900Min wage: $5.15/hrPresident: Bill Clinton"Believe" — CherBest Picture: American Beauty
2004Started school
Indian Ocean tsunami kills over 230,000
Gas: $1.88/galHome: $157,300Min wage: $5.15/hrPresident: George W. Bush"Yeah!" — UsherBest Picture: Million Dollar Baby
2012Became a teenager
Curiosity rover lands on Mars; Sandy Hook shooting
Gas: $3.64/galHome: $143,200Min wage: $7.25/hrPresident: Barack Obama"Somebody That I Used to Know" — GotyeBest Picture: Argo
2015Could drive
Paris climate agreement; same-sex marriage legalized in the US
Gas: $2.43/galHome: $171,900Min wage: $7.25/hrPresident: Barack Obama"Uptown Funk" — Mark Ronson ft. Bruno MarsBest Picture: Spotlight
2017Could vote
#MeToo movement; solar eclipse crosses the US
Gas: $2.42/galHome: $195,000Min wage: $7.25/hrPresident: Donald Trump"Shape of You" — Ed SheeranBest Picture: The Shape of Water
2020Turned 21
COVID-19 pandemic shuts down the world
Gas: $2.17/galHome: $248,800Min wage: $7.25/hrPresident: Donald Trump"Blinding Lights" — The WeekndBest Picture: Nomadland
2026Age 27 today
Gas: $3.91/galPresident: Donald Trump
Key Achievements
- Was a selected member of the idol group Keyakizaka46 (later Sakurazaka46) from 2015 to 2022.
- Became an exclusive model for the Japanese fashion magazine 'JJ'.
- Released solo music under the artist name Yousti after graduating from the idol group.
Did You Know?
Her nickname among fans is 'You-chan'.
She has a younger sister who is also in the entertainment industry.
She is known for her proficiency in dancing.
“The stage is a mirror, and I must be strong enough to look into it.”
