DAY6 (데이식스) is a South Korean rock band formed by JYP Entertainment and officially debuted on September 7, 2015, with the mini album The Day. Unlike traditional idol groups, DAY6 performs as a live band, with each member playing instruments while also contributing to vocals and songwriting. The group is praised for blending alternative rock, pop rock, and ballad influences, creating music that feels both emotional and timeless. Over the years, DAY6 has released critically acclaimed albums such as Sunrise, Moonrise, Shoot Me: Youth Part 1, The Book of Us series, and Negentropy. As of now, DAY6 promotes as a four-member band following lineup changes, continuing to evolve musically while staying true to their core identity.
Sungjin
- Name (English): Park Sung-jin
- Name (Korean): 박성진
- Revised Romanization: Bak Seongjin
- Birthdate: January 16, 1993
- Age: 32
- Birthplace: Busan, South Korea
- Nationality: South Korean
- Debut: 2015
- Position: Leader, vocalist
- Height: 178cm
- Blood Type: A
- MBTI: ENFJ
- Social Media: Instagram, X
Sungjin, whose full name is Park Sung-jin, was born on January 16, 1993, and serves as the leader, main vocalist, and rhythm guitarist of DAY6. As the emotional backbone of the band, Sungjin’s powerful yet raw vocal tone adds depth and sincerity to DAY6’s music, especially in rock-driven and emotionally intense tracks. He is known for his grounded leadership style, quiet humor, and honest personality, often acting as the stabilizing force within the group. Sungjin has also participated heavily in songwriting and lyric composition, contributing personal experiences and introspective themes to the band’s discography. After completing his military service, fans noticed a renewed maturity in both his music and stage presence, reinforcing his role as a dependable leader who prioritizes artistic integrity over trends.
Young K
- Name (English): Kang Young-hyun
- Name (Korean): 강영현
- Revised Romanization: Gang Yeonghyeon
- Birthdate: December 19, 1993
- Age: 32
- Birthplace: Seoul, South Korea
- Nationality: South Korean
- Debut: 2015
- Position: Bass, vocalist, rap, electric guitar
- Height: 180cm
- Blood Type: B
- MBTI: ENTP
- Social Media: Instagram
Young K, born Kang Young-hyun on December 19, 1993, is the main rapper, main vocalist, bassist, and one of DAY6’s most prolific songwriters. Fluent in English and Korean, Young K often represents the group in international interviews and solo projects, making him a key bridge between DAY6 and global fans. His lyrical style is known for its emotional clarity, relatability, and poetic storytelling, with credits on nearly every DAY6 song. Musically, Young K stands out for his versatility, effortlessly switching between rap, powerful vocals, and melodic bass lines. His solo work and radio hosting further highlight his intelligence, warmth, and strong communication skills, making him one of the most respected idol-musicians in the industry.
Wonpil
- Name (English): Kim Won-pil
- Name (Korean): 김원필
- Revised Romanization: Gim Wonpil
- Birthdate: April 28, 1994
- Age: 31
- Birthplace: Incheon, South Korea
- Nationality: South Korean
- Debut: 2015
- Position: Keyboard, vocalist, synthesizer
- Height: 176cm
- Blood Type: A
- MBTI: INFJ
- Social Media: Instagram
Wonpil, whose real name is Kim Won-pil, was born on April 28, 1994, and is DAY6’s keyboardist, synthesizer player, and lead vocalist. Known for his soft yet emotionally expressive voice, Wonpil often carries the sentimental core of DAY6’s ballads and mid-tempo tracks. His keyboard arrangements add texture and atmosphere to the band’s sound, balancing rock intensity with melodic warmth. Fans adore Wonpil for his gentle personality, bright smile, and emotional vulnerability, which often shine through in both lyrics and performances. In addition to group activities, Wonpil has released solo music that showcases his introspective songwriting and delicate musical sensibility, proving his ability to stand out while still complementing DAY6’s overall sound.
Dowoon
- Name (English): Yoon Do-woon
- Name (Korean): 윤도운
- Revised Romanization: Yun Doun
- Birthdate: August 25, 1995
- Age: 30
- Birthplace: Seoul, South Korea
- Nationality: South Korean
- Debut: 2015
- Position: Druum
- Height: 178cm
- Blood Type: O
- Social Media: Instagram, X
Dowoon, born Yoon Do-woon on August 25, 1995, is the drummer and vocalist of DAY6. Though he joined the band later than the other members, Dowoon has grown tremendously as both a musician and performer. His drumming style is dynamic yet controlled, providing a solid rhythmic foundation that allows DAY6’s emotional melodies to shine. Over the years, Dowoon has gained confidence as a vocalist, occasionally surprising fans with his warm and steady singing voice. Personality-wise, he is known for his playful humor, sincerity, and down-to-earth charm, often bringing lighthearted energy to the group. His dedication to self-improvement and passion for music make him an essential part of DAY6’s growth and longevity.
DAY6 Members Summary Table
| Stage Name | Real Name | Position(s) | Birthday | Nationality |
|---|---|---|---|---|
| Sungjin | Park Sung-jin (박성진) | Leader, Main Vocalist, Rhythm Guitarist | January 16, 1993 | Korean |
| Young K | Kang Young-hyun (강영현) | Main Rapper, Main Vocalist, Bassist, Songwriter | December 19, 1993 | Korean |
| Wonpil | Kim Won-pil (김원필) | Keyboardist, Synthesizer, Lead Vocalist | April 28, 1994 | Korean |
| Dowoon | Yoon Do-woon (윤도운) | Drummer, Vocalist | August 25, 1995 | Korean |
