Seungwon (NTX)

For other people known as 'Seungwon', see Seungwon.

Seungwon
Concept photo for Over Track
Background
Other name(s)	U.Win (유윈) (former) Song (SoundCloud)
Birth name	Song Seung-won (송승원)
Birth date	November 6, 2004 (2004-11-06)
Birth place	Bucheon, Gyeonggi-do, South Korea
Height	170 cm (5 ft 7 in)
Weight	50 kg (110 lb)
Career
Occupation	Rapper, lyricist
Group debut	March 30, 2021 (NTX) November 16, 2017 (U.SSO Boy)
Years active	2017–present
Agency	Victory Company (2019–present) Kids Planet (2017–2018)
Associations	NTX U.SSO Boy
Fandom
Color(s)	Yellow (NTX)
SNS

Seungwon (승원) is a South Korean rapper and lyricist under Victory Company. He is a member of the boy group NTX and a former member of the kids group U.SSO Boy under the stage name U.Win (유윈).

Career

2017–2018: U.SSO Boy

In 2017, he was announced as a member of Kids Planet's kids' group U.SSO Boy. They debuted on November 16, 2017, with their first digital single "Let's Go Now". U.SSO Boy disbanded on October 27, 2018.

2021: NTX

He debuted as a member of NTX with their first mini album, Full of Lovescapes, on March 30, 2021.

Discography

SoundCloud mixtapes

• Thisisme (2023)
• Mixtape : Emotional Dumping (2024)
• 24/25 Overcome (2024)

SoundCloud releases

• "Spare (Feat. View)" (2025)

SoundCloud collaborations

• "Loop" (with Changhun) (2023)
• "Zero" (with Rawhyun) (2023)
• [SONG X RAWHYUN] : Cc.2 (with Rawhyun) (2024)
• [SONG X XIHA Mixtape : Bipolar Love] (with Xiha) (2025)

SoundCloud features

• Hyeongjin - "너니까 (Feat. Changhun, Song, Rawhyun)" (2025)

Writing credits

• All credits adapted from KOMCA, unless stated.

Artist	Song	Album	Credit
2023
NTX	"Drop That"	Odd Hour	Writing
	"Free Day"
	"Scream"
	"Forever Now"
2024
NTX	"Just Once"	Hold X	Writing
	"Myful"

Gallery

Promotional

U.SSO Boy profile photo

"The Opening : Public" (1)

"The Opening : Public" (2)

"The Opening : Basic Yell"

"The Opening : The Finale"

Full of Lovescapes (1)

Full of Lovescapes (2)

"Latecomer"

Odd Hour (1)

Odd Hour (2)

Odd Hour (3)

Odd Hour (4)

Hold X (1)
(Rock ver.)

Hold X (2)
(Rock ver.)

Hold X (3)
(Sporty ver.)

Hold X (4)
(Sporty ver.)

Over Track (1)

Over Track (2)

SNS

Happy Seungwon Day (2023)

Happy Seungwon Day (2024)

Official links

• Instagram