Lee Seok-min (Korean: 이석민; born February 18, 1997), known professionally as Dokyeom (도겸) or DK, is a South Korean singer. Managed by Pledis Entertainment he is a member of the South Korean boy band Seventeen, its vocal team, and is the leader of its subunit BSS with Hoshi and Seungkwan.

Outside of his group activities, In 2019, DK made his musical theatre debut with the lead role Arthur in XCalibur, the South Korean production of Artus-Excalibur . He then returned to play the role of Arthur in XCalibur's 2021 run. DK has also released a number of OSTs that have been commercially successful in South Korea.

Career Resume (2011 - present)

DK joined Pledis Entertainment in late 2011, having auditioned for the company after being inspired by South Korean singer Yoon Do-hyun's career. Then, on May 29, 2015, DK debuted as a member of the South Korean boy group Seventeen with the extended play 17 Carat. In 2018, DK, alongside Seventeen members Seungkwan and Hoshi, formed the group's first official subunit, BSS or BooSeokSoon (부석순), with DK acting as the trio's leader. BSS released their debut single "Just Do It" on March 21. On February 28, 2019, DK was cast as Arthur, a leading role in the South Korean production of Artus-Excalibur titled Xcalibur at the Sejong Center, marking his debut as a musical actor, and comes back for second run in 2021. In 2023, after a five-year hiatus, BSS returned with the single album Second Wind and song "Fighting", which both met commercial success. In May 2025, DK released "It's You" for the soundtrack of Resident Playbook. He formed DxS, a duo with Seungkwan, with their debut mini album Serenade.

Original Character

Sagara Mahardika (Dika, Gara, Saga)