K-pop Boy Groups

5but Members Profile: Full Names, Ages, Heights, Weights and More

June 24, 2026 | By Kris Lodhi

5but members are Seungyoon, Yangeop, Junhyeok, and Hyeok.

Origin	Seoul, South Korea
Debut	February 14, 2020
Number of Members	4
Members	Seungyoon Yangeop Junhyeok Hyeok
Former Members	Gitae Hyesu Jinhyung

5but Members Profile

Seungyoon

5but member Seungyoon

Full Name	Go Seungyoon
Birthday	N/A
Birthplace	N/A
Age	N/A
Height	N/A
Weight	N/A
Zodiac Sign	N/A
Blood Type	N/A
MBTI	N/A
Position	Vocalist, Synthesizer
Instagram	ver.muda

Yangeop

5but member Yangeop

Full Name	Lee Yangeop
Birthday	N/A
Birthplace	N/A
Age	N/A
Height	N/A
Weight	N/A
Zodiac Sign	N/A
Blood Type	N/A
MBTI	N/A
Position	Guitarist
Instagram	uphyung

Junhyeok

5but member Junhyeok

Full Name	Yang Junhyeok
Birthday	N/A
Birthplace	N/A
Age	N/A
Height	N/A
Weight	N/A
Zodiac Sign	N/A
Blood Type	N/A
MBTI	N/A
Position	Bassist
Instagram	yjh331

Hyeok

5but member Hyeok

Full Name	Son Hyeok
Birthday	N/A
Birthplace	N/A
Age	N/A
Height	N/A
Weight	N/A
Zodiac Sign	N/A
Blood Type	N/A
MBTI	N/A
Position	Drummer
Instagram	son_hyeok

Former Member Profile

Gitae

Full Name	Yoo Gitae
Birthday	N/A
Birthplace	N/A
Age	N/A
Height	N/A
Weight	N/A
Zodiac Sign	N/A
Blood Type	N/A
MBTI	N/A
Position	Guitarist

Hyesu

5but former member Hyesu

Full Name	Lee Hyesu
Birthday	N/A
Birthplace	N/A
Age	N/A
Height	N/A
Weight	N/A
Zodiac Sign	N/A
Blood Type	N/A
MBTI	N/A
Position	Bassist
Instagram	___jamjami

Jinhyung

5but former member Jinhyung

Full Name	Jeon Jinhyung
Birthday	N/A
Birthplace	N/A
Age	N/A
Height	N/A
Weight	N/A
Zodiac Sign	N/A
Blood Type	N/A
MBTI	N/A
Position	Drummer
Instagram	jinn.___.jinn

FAQs

How many members are in 5but?

5but is a 4-member K-pop co-ed group. The group consists of Seungyoon, Yangeop, Junhyeok, and Hyeok.

When did 5but debut?

5but debuted on February 14, 2020, with their song 백야 (White Night).