K-pop Boy Groups

QUESTIONMARK Members Profile: Full Names, Ages, Heights, Weights and More

June 26, 2026 | By
QUESTIONMARK members are Jay Moon, VINXEN, NE:ON, and Lee Sosang.
OriginSeoul, South Korea
DebutDecember 31, 2024
Number of Members4
MembersJay Moon
VINXEN
NE:ON
Lee Sosang

QUESTIONMARK Members Profile

Jay Moon

QUESTIONMARK member Jay Moon
Full NameMoon Ji Won
BirthdayJanuary 09, 1995
BirthplaceSeoul, South Korea
Age31 years and 5 months old
HeightN/A
Zodiac SignCapricorn
EducationPractical Music Department at Howon University
PositionDrummer
Instagram@flyjaymoon

VINXEN

QUESTIONMARK member VINXEN
Full NameLee Byungjae
BirthdayApril 20, 2000
BirthplaceIncheon, South Korea
Age26 years and 2 months old
Height5 feet 11 inches (180 cm)
Zodiac SignTaurus
Chinese Zodiac SignDragon
Blood TypeAB
MBTIINTP
EducationIncheon Shinjeong Middle School
PositionVocalist, Guitarist
Instagram@kiff_vinxen

NE:ON

QUESTIONMARK member NE:ON
Full NameBaek Byeong Hak
BirthdayMay 05, 2000
BirthplaceN/A
Age26 years and 1 month old
Height5 feet 7 inches (171 cm)
Weight103 lbs (47 kg)
Zodiac SignTaurus
Chinese Zodiac SignDragon
MBTIENTJ
PositionGuitarist, Bandmaster
Instagram@gpsneon

Lee Sosang

QUESTIONMARK member Lee Sosang
Full NameLee So Sang
BirthdayN/A
BirthplaceN/A
AgeN/A
HeightN/A
Zodiac SignN/A
PositionBassist
Instagram@a_small_us

Member Ages: Oldest to Youngest

MemberBirthdayAge
Jay MoonJanuary 09, 199531 years, 5 months, 17 days old
VINXENApril 20, 200026 years, 2 months, 6 days old
NE:ONMay 05, 200026 years, 1 month, 21 days old

FAQs

How many members are in QUESTIONMARK?

QUESTIONMARK is a 4-member K-pop boy group. The group consists of Jay Moon, VINXEN, NE:ON, and Lee Sosang.

When did QUESTIONMARK debut?

QUESTIONMARK debuted on December 31, 2024, with their single Don’t go.

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