Bumzu
Bumzu in 2023 producingSecond Wind
Born	Kye Beom-ju (1991-11-08)November 8, 1991 (age 34) Seoul, South Korea
Other names	Nusoul Wasurenai Baekgom
Occupations	Singer songwriter record producer
Musical career
Genres	K-pop R&B
Instrument	Vocals
Years active	2011–present
Labels	Pledis Prismfilter
Korean name
Hangul	계범주
RR	Gye Beomju
MR	Kye Pŏmju
Musical artist

Kye Beom-ju (Korean: 계범주, born November 8, 1991), better known by the stage nameBumzu (범주), is a South Korean record producer, songwriter and singer. He signed toPledis Entertainment early in his career, and has been co-CEO of the Prismfilter Music Group since 2016.^[1][2]

He is best known for his work with Pledis Entertainment labelmatesNU'EST andSeventeen, and has amassed credits working with other South Korean artists includingShinee,Fromis 9,NCT 127,TWS, andBTS'sJin.^[3][1] Since 2019, he has been a full member of theKorea Music Copyright Association (KOMCA), a status given to music creators who meet the highest levels of professional standards and copyright royalties.^[4][5] In 2025, he also became a member ofThe Recording Academy.

Bumzu was born in Seoul, South Korea, on November 8, 1991.^[6] He learned the violin as a child, and by the age of high school, he became active inHongdae's underground music scene.^[7] His first mainstream work was composing forH.O.T'sJang Woo-hyuk's "Don't Go, Go Away" in 2011. He then participated in the singing competition showSuperstar K 4 at the age of 22,^[8] which has been noted as hisbig break.^[1] Following the show, he began producing songs forPledis artists includingAfter School andNU'EST, and has produced songs alongsideWoozi forSeventeen since their debut song "Adore U".^[7] He also worked onvocal coaching the members of Seventeen early in their careers.^[1]

Since 2016, he has been the co-CEO of the music production company Prismfilter Music Group.^[1][9] In 2024, Bumzu started producing music for Pledis' new groupTWS under the pseudonym "Wasurenai".^[10] In February, he was awardedKOMCA's grand prize, having been the highest-earning songwriter for K-pop in 2023.^[11] On December 7, 2025, he won the Legendary Producer award at the 10thAsia Artist Awards, his second consecutive year winning a producer award at the ceremony.^[12] The same year, he became a member ofThe Recording Academy.^[13]

• 1991 births
• Living people
• Pledis Entertainment artists
• 21st-century South Korean male singers
• South Korean record producers
• 21st-century South Korean composers
• Superstar K participants
• Hybe artists
• Suan Gye clan

• CS1 Korean-language sources (ko)
• CS1 uses Korean-language script (ko)
• Articles with short description
• Short description is different from Wikidata
• Use mdy dates from October 2019
• Articles containing Korean-language text
• Articles with hCards