BSS (Korean: 부석순, 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.
The group is considered one of the most successful sub-units in K-pop, with their single "Fighting" garnering multiple nominations and awards for Song of the Year in 2023, and their debut single album Second Wind breaking the first-week sales record for an album released by a sub-unit. The group have also been selected as ambassadors for multiple brands, and in 2024, "Fighting" was selected as the official cheer song for the South Korean team at the Paris Olympics.
Name
BSS is an acronym that stands for BooSeokSoon, a combination of a syllable from each of the band members' names: "Boo" from Boo 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.
Career
2018: Formation and debut
On February 2, 2018, DK, Hoshi, and Seungkwan performed an unreleased song, "Just Do It", at a Seventeen fan meeting as a special one-time skit. Following the performance, the fans' enthusiastic reaction prompted the formation of the trio as Seventeen's first official sub-unit, BSS. The group debuted on March 21, 2018, officially releasing "Just Do It" as a digital single.
2023–present: Second Wind and Teleparty
In January 2023, almost five years after their debut, BSS announced they would be releasing an album. 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. On December 27, it was announced that BSS would be releasing their second single album Teleparty, alongside its lead single "CBZ (Prime Time)" on January 8, 2025.
