tripleSVisualLeader (Acid Angel from Asia)Leader (EVOLution)

YooYeon

유연Kim Yoo-yeon (김유연)

S5 YooYeon is tripleS's eldest member and a visual who led both Acid Angel from Asia and EVOLution.

ColourOpera PinkEmoji

Photo: K-POPIT, via Wikimedia Commons · CC BY 3.0

Age: 25; Feb 9, 2001
Height: 165 cm; 5′5″
MBTI: INTP; self-reported
Debut: 2022; with tripleS

At a glance

Profile

Stage name: YooYeon (유연)
Birth name: Kim Yoo-yeon (김유연)
Position: Visual, Leader (Acid Angel from Asia), Leader (EVOLution)
Birthday: February 9, 2001 (age 25)
Zodiac sign: Aquarius
Chinese zodiac: Snake
Height: 165 cm (5′5″)
Blood type: B
MBTI: INTP
Nationality: South Korean
Birthplace: Banpo-dong, Seocho-gu, Seoul, South Korea
Representative colour: Opera Pink
Representative emoji: 🐰
Nicknames: Ewha University Girl
Joined: July 11, 2022

8 facts

About YooYeon

Kim YooYeon became widely known as a finalist on My Teenage Girl before she was revealed as tripleS member S5. The science-education student then led the group's first Dimension, Acid Angel from Asia, and later EVOLution.

01
She was revealed as S5 on July 11, 2022.
02
She finished eighth in the finale of My Teenage Girl, narrowly missing the debut lineup.
03
She studies science education at Ewha Womans University and took a leave to pursue her idol career.
04
She is the oldest of tripleS's 24 members.
05
She led Acid Angel from Asia for the unit's Access debut.
06
She later confirmed that she was EVOLution's leader.
07
Official content has identified her as one of the group's visuals.
08
Her current official representative emoji is a rabbit.

38 tracks

Solo & unit tracks

Songs on tripleS releases that feature YooYeon on her own or in a unit.

Nov 24, 2025
“Bubble Gum Girl”
Sun: HyeRin, ChaeYeon, YooYeon, Xinyu, Mayu & ChaeWon · Beyond Beauty
EP
Oct 1, 2025
“Password”
Hatchi unit: JiWoo, ChaeYeon, YooYeon, SooMin, Kotone, Mayu, ShiOn & ChaeWon · SecretHimitsuBimil
EP
Oct 1, 2025
“Headphones”
Hatchi unit: JiWoo, ChaeYeon, YooYeon, SooMin, Kotone, Mayu, ShiOn & ChaeWon · SecretHimitsuBimil
EP
Oct 1, 2025
“Tokimetique”
Hatchi unit: JiWoo, ChaeYeon, YooYeon, SooMin, Kotone, Mayu, ShiOn & ChaeWon · SecretHimitsuBimil
EP
Oct 1, 2025
“Tokyo”
Hatchi unit: JiWoo, ChaeYeon, YooYeon, SooMin, Kotone, Mayu, ShiOn & ChaeWon · SecretHimitsuBimil
EP
Oct 1, 2025
“Oshare”
Hatchi unit: JiWoo, ChaeYeon, YooYeon, SooMin, Kotone, Mayu, ShiOn & ChaeWon · SecretHimitsuBimil
EP
Oct 1, 2025
“Untitled”
Hatchi unit: JiWoo, ChaeYeon, YooYeon, SooMin, Kotone, Mayu, ShiOn & ChaeWon · SecretHimitsuBimil
EP
Oct 1, 2025
“### (Hatchi Ver.)”
Hatchi unit: JiWoo, ChaeYeon, YooYeon, SooMin, Kotone, Mayu, ShiOn & ChaeWon · SecretHimitsuBimil
EP
Oct 1, 2025
“Girls Never Die (Japanese Ver.)”
Hatchi unit: JiWoo, ChaeYeon, YooYeon, SooMin, Kotone, Mayu, ShiOn & ChaeWon; Japanese version · SecretHimitsuBimil
EP
Oct 1, 2025
“Rising (Japanese Ver.)”
Hatchi unit: JiWoo, ChaeYeon, YooYeon, SooMin, Kotone, Mayu, ShiOn & ChaeWon; Japanese version · SecretHimitsuBimil
EP
Nov 20, 2024
“Untitled”
Hatchi unit: JiWoo, ChaeYeon, YooYeon, SooMin, Kotone, Mayu, ShiOn & ChaeWon · Untitled
Single album
Nov 20, 2024
“### (Hatchi Ver.)”
Hatchi unit: JiWoo, ChaeYeon, YooYeon, SooMin, Kotone, Mayu, ShiOn & ChaeWon · Untitled
Single album
Oct 23, 2024
“Visual Virtue”
Unit: HyeRin, YooYeon, NaKyoung, YuBin, Kaede, Kotone, YeonJi, Nien, SoHyun, Xinyu, Lynn & JiYeon · Performante
Studio album
Oct 23, 2024
“Hit the Floor”
Unit: HyeRin, YooYeon, NaKyoung, YuBin, Kaede, Kotone, YeonJi, Nien, SoHyun, Xinyu, Lynn & JiYeon · Performante
Studio album
Oct 23, 2024
“Choom”
Unit: HyeRin, YooYeon, NaKyoung, YuBin, Kaede, Kotone, YeonJi, Nien, SoHyun, Xinyu, Lynn & JiYeon · Performante
Studio album
Oct 23, 2024
“Éclair”
Unit: HyeRin, YooYeon, NaKyoung, YuBin, Kaede, Kotone, YeonJi, Nien, SoHyun, Xinyu, Lynn & JiYeon · Performante
Studio album
Oct 23, 2024
“Love Soseol”
Unit: HyeRin, YooYeon, NaKyoung, YuBin, Kaede, Kotone, YeonJi, Nien, SoHyun, Xinyu, Lynn & JiYeon · Performante
Studio album
Oct 23, 2024
“Atmosphere (VV Ver.)”
Unit: HyeRin, YooYeon, NaKyoung, YuBin, Kaede, Kotone, YeonJi, Nien, SoHyun, Xinyu, Lynn & JiYeon · Performante
Studio album
Oct 23, 2024
“12 Rings”
Unit: HyeRin, YooYeon, NaKyoung, YuBin, Kaede, Kotone, YeonJi, Nien, SoHyun, Xinyu, Lynn & JiYeon · Performante
Studio album
Oct 23, 2024
“Vision”
Unit: HyeRin, YooYeon, NaKyoung, YuBin, Kaede, Kotone, YeonJi, Nien, SoHyun, Xinyu, Lynn & JiYeon · Performante
Studio album
Oct 23, 2024
“Bionic Power”
Unit: HyeRin, YooYeon, NaKyoung, YuBin, Kaede, Kotone, YeonJi, Nien, SoHyun, Xinyu, Lynn & JiYeon · Performante
Studio album
Oct 23, 2024
“Vision@ry Vision”
Unit: HyeRin, YooYeon, NaKyoung, YuBin, Kaede, Kotone, YeonJi, Nien, SoHyun, Xinyu, Lynn & JiYeon · Performante
Studio album
Oct 11, 2023
“Mujuk”
Unit: JiWoo, ChaeYeon, YooYeon, SooMin, NaKyoung, Kotone, YeonJi & Mayu · Mujuk
EP
Oct 11, 2023
“Invincible”
Unit: JiWoo, ChaeYeon, YooYeon, SooMin, NaKyoung, Kotone, YeonJi & Mayu · Mujuk
EP
Oct 11, 2023
“Rhodanthe”
Unit: JiWoo, ChaeYeon, YooYeon, SooMin, NaKyoung, Kotone, YeonJi & Mayu · Mujuk
EP
Oct 11, 2023
“Heavy Metal Wings”
Unit: JiWoo, ChaeYeon, YooYeon, SooMin, NaKyoung, Kotone, YeonJi & Mayu · Mujuk
EP
Oct 11, 2023
“37.5 Celsius”
Unit: JiWoo, ChaeYeon, YooYeon, SooMin, NaKyoung, Kotone, YeonJi & Mayu · Mujuk
EP
Oct 11, 2023
“Moto Princess”
Unit: JiWoo, ChaeYeon, YooYeon, SooMin, NaKyoung, Kotone, YeonJi & Mayu · Mujuk
EP
Oct 11, 2023
“Oui”
Unit: JiWoo, ChaeYeon, YooYeon, SooMin, NaKyoung, Kotone, YeonJi & Mayu · Mujuk
EP
Jul 6, 2023
“Cherry Gene 'Baddest Mix'”
ACID EYES union: SeoYeon, HyeRin, JiWoo, ChaeYeon, YooYeon, SooMin, NaKyoung & YuBin · Cherry Gene
Single album
Jul 6, 2023
“Cherry Gene 'Hy-Fluid Mix'”
ACID EYES union: SeoYeon, HyeRin, JiWoo, ChaeYeon, YooYeon, SooMin, NaKyoung & YuBin · Cherry Gene
Single album
Jul 6, 2023
“Cherry Gene 'Testarossa Mix'”
ACID EYES union: SeoYeon, HyeRin, JiWoo, ChaeYeon, YooYeon, SooMin, NaKyoung & YuBin · Cherry Gene
Single album
Oct 28, 2022
“Access”
Unit: HyeRin, YooYeon, NaKyoung & YuBin · Access
EP
Oct 28, 2022
“Generation”
Unit: HyeRin, YooYeon, NaKyoung & YuBin · Access
EP
Oct 28, 2022
“Rolex”
Unit: HyeRin, YooYeon, NaKyoung & YuBin · Access
EP
Oct 28, 2022
“Charla”
Unit: HyeRin, YooYeon, NaKyoung & YuBin · Access
EP
Oct 28, 2022
“Dimension (AAA Ver.)”
Unit: HyeRin, YooYeon, NaKyoung & YuBin · Access
EP
Oct 28, 2022
“+(82)”
Unit: HyeRin, YooYeon, NaKyoung & YuBin · Access
EP

Photo credits

YooYeon of tripleS at the Assemble24 showcase: K-POPIT, via Wikimedia Commons · CC BY 3.0 · source
SeoYeon of tripleS at the Assemble24 showcase: K-POPIT, via Wikimedia Commons · CC BY 3.0 · source
HyeRin of tripleS at the Assemble24 showcase: K-POPIT, via Wikimedia Commons · CC BY 3.0 · source
JiWoo of tripleS at the Assemble24 showcase: K-POPIT, via Wikimedia Commons · CC BY 3.0 · source
ChaeYeon of tripleS at the Assemble24 showcase: K-POPIT, via Wikimedia Commons · CC BY 3.0 · source
SooMin of tripleS at the Assemble24 showcase: K-POPIT, via Wikimedia Commons · CC BY 3.0 · source
NaKyoung of tripleS at the Assemble24 showcase: K-POPIT, via Wikimedia Commons · CC BY 3.0 · source
YuBin of tripleS at the Assemble24 showcase: K-POPIT, via Wikimedia Commons · CC BY 3.0 · source
Kaede of tripleS at the Assemble24 showcase: K-POPIT, via Wikimedia Commons · CC BY 3.0 · source
DaHyun of tripleS at the Assemble24 showcase: K-POPIT, via Wikimedia Commons · CC BY 3.0 · source
Kotone of tripleS at the Assemble24 showcase: K-POPIT, via Wikimedia Commons · CC BY 3.0 · source
YeonJi of tripleS at the Assemble24 showcase: K-POPIT, via Wikimedia Commons · CC BY 3.0 · source
Nien of tripleS at the Assemble24 showcase: K-POPIT, via Wikimedia Commons · CC BY 3.0 · source
SoHyun of tripleS at the Assemble24 showcase: K-POPIT, via Wikimedia Commons · CC BY 3.0 · source
Xinyu of tripleS at the Assemble24 showcase: K-POPIT, via Wikimedia Commons · CC BY 3.0 · source
Mayu of tripleS at the Assemble24 showcase: K-POPIT, via Wikimedia Commons · CC BY 3.0 · source
Lynn of tripleS at the Assemble24 showcase: K-POPIT, via Wikimedia Commons · CC BY 3.0 · source
JooBin of tripleS at the Assemble24 showcase: K-POPIT, via Wikimedia Commons · CC BY 3.0 · source
HaYeon of tripleS at the Assemble24 showcase: K-POPIT, via Wikimedia Commons · CC BY 3.0 · source
ShiOn of tripleS at the Assemble24 showcase: K-POPIT, via Wikimedia Commons · CC BY 3.0 · source
ChaeWon of tripleS at the Assemble24 showcase: K-POPIT, via Wikimedia Commons · CC BY 3.0 · source
Sullin of tripleS at the Assemble24 showcase: K-POPIT, via Wikimedia Commons · CC BY 3.0 · source
SeoAh of tripleS at the Assemble24 showcase: K-POPIT, via Wikimedia Commons · CC BY 3.0 · source
JiYeon of tripleS at the Assemble24 showcase: K-POPIT, via Wikimedia Commons · CC BY 3.0 · source

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About YooYeon

Solo & unit tracks

Also in tripleS