BSS (band)

BSS (, also known as BooSeokSoon or Seventeen BSS) is the first sub-unit of South Korean boy band Seventeen. Formed in 2018, the group is composed of DK, Hoshi, and Seungkwan.

Name
BSS is an acronym that stands for BooSeokSoon, a portmanteau composed of a syllable from each of the band members' names: "Boo" from Seungkwan, "Seok" from Lee Seokmin (DK), and "Soon" from Kwon Soonyoung (Hoshi). The name was coined by fans during the members' training period, prior to their official debut as Seventeen.

2018: Formation and debut
On February 2, 2018, Seventeen members DK, Hoshi, and Seungkwan performed an unreleased song, "Just Do It", at a fan meeting as a special one-time skit. Following the performance, the fans' enthusiastic reaction prompted the formation of Seventeen's first sub-unit, BSS. The group debuted on March 21, 2018, officially releasing "Just Do It" as a digital single.

2019–present: Hiatus and Second Wind
Almost five years after their debut, BSS announced they would release a new album on January 7, 2023. The group released their first single album Second Wind on February 6, 2023, alongside the music video for its lead single, "Fighting", featuring Lee Young-ji. The album includes two other tracks, "Lunch" and "7PM", with the latter featuring Norwegian artist Peder Elias. On the first day of its release, Second Wind sold over 478,000 copies, breaking the first-week sales record for an album released by a K-pop band sub-unit. By the end of the first week, the album sold a record 610,189 copies in total. On February 15, 2023, BSS received their first music show win on MBC M's Show Champion with "Fighting", followed by wins on M Countdown, Music Bank, Show! Music Core and Inkigayo. Following the success of their promotions, BSS won the Best Performance of the Year category at the 2023 Asia Artist Awards, earning themselves their first daesang (grand prize) award.

On March 10, 2024, BSS released the single "The Reasons of My Smiles" as part of the original soundtrack of the series Queen of Tears.

Endorsements
On February 13, 2022, BSS was selected as the brand ambassador of skincare brand Bring Green. In March 2024, BSS was appointed as Oppo Reno Experts, serving as the face of Oppo's campaign to launch the Oppo Reno11 F 5G smartphone into the Asia-Pacific market.

On June 24, South Korean beer brand Cass, an official partner of the 2024 Paris Olympics, announced BSS as the models of their summer digital campaign Cheers Sound; in collaboration with BSS, Cass plans to introduce an AI-supported video service to deliver "heartfelt support videos" suitable for friends, family, and the athletes of the South Korean national team, among others. BSS' song "Fighting" was also selected as the official cheer song for the South Korean team at the Paris Olympics.

Members

 * DK (도겸) – leader
 * Hoshi
 * Seungkwan