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.

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.

History 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.

Other ventures

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 its summer digital campaign "Cheers Sound". The group's song "Fighting" was also selected as the official cheer song for the South Korean team at the Paris Olympics.

Members DK – leader Hoshi Seungkwan

Discography Single albums + List of single albums, showing selected details, selected chart positions, sales figures, and certifications Title Details Peak chart positions Sales Certifications KORPeak positions on the Circle Album Chart:

BEL(FL)BEL(WAL) GERPeak positions on Germany's Top 100 Albums Chart: JPNPeak positions on Japan's Oricon Singles Chart: PRTSWI Second Wind Released: February 6, 2023 Label: Pledis Formats: CD, digital download, streaming 1 180 76 76 3 7 88 KOR: 756,410Sales for Second Wind:

JPN: 54,848 KMCA: 2× Platinum Teleparty Released: January 8, 2025 Label: Pledis Formats: CD, digital download, streaming 1 — — — 2 — — KOR: 683,932Cumulative Sales of Teleparty:

JPN: 63,045 KMCA: Platinum "—" denotes releases that did not chart or were not released in that region.

Singles + List of singles, showing year released, selected chart positions, and name of the album Title Year Peak chart position Certifications AlbumKORPeak positions on the Circle Digital Chart: "Just Do It": "Fighting", "7PM", and "Lunch": "CBZ (Prime Time)", "Happy Alone", and "Love Song": KOR SongsJPNHotPeak chart positions on Billboards Japan Hot 100:

NZHotUSWorldPeaks on the World Digital Song Sales chart: "Fighting": "CBZ (Prime Time)": "Just Do It" () 2018 167 — — — — "Fighting" () 2023 5 5 1 — 8 KMCA: Platinum RIAJ: Gold Second Wind "CBZ (Prime Time)" () 2025 22 — 5 40 10 Teleparty "—" denotes releases that did not chart or were not released in that region.

Soundtrack appearances Title Year Peak chart positions AlbumKORPeak positions on the Circle Digital Chart: "The Reasons of My Smiles": "Good Day 2025": "The Reasons of My Smiles" () 2024 93 Queen of Tears OST "Good Day 2025 (Telepathy + By the Moonlight Window)" () 2025 21 Good Day OST

Other charted songs + List of other charted songs, showing year released, selected chart positions, and name of the album Title Year Peak chart position AlbumKOR "Lunch" 2023 65 Second Wind "7PM" () 49 "Happy Alone" 2025 121 Teleparty "Love Song" () 127

Videography

Music videos Title Year Director(s) "Just Do It" 2018 Unknown "Fighting" 2023 Bang Jaeyeob (Bang Jaeyeob Film) "CBZ (Prime Time)" 2025 Hattrick

Awards and nominations

+Name of the award ceremony, year presented, category, nominee(s) of the award, and the result of the nomination Award ceremony Year Category Nominee(s) Result Asia Artist Awards 2023 Performance of the Year (Daesang) BSS Asian Pop Music Awards2023Top 20 Songs of the Year – Overseas "Fighting" Best Collaboration People's Choice Award – Overseas BSS Brand of the Year Awards 2023 Best Unit Golden Disc Awards2024Digital Daesang (Song of the Year) "Fighting" Digital Bonsang MAMA Awards 2018Song of the Year "Just Do It" Best Unit BSS 2023 Song of the Year "Fighting" Best Collaboration Melon Music Awards2023Top 10 Artist BSS Millions Top 10 Best Male Group Song of the Year "Fighting" 2025 Millions Top 10 Teleparty (Note: Click on tab labelled "부문별 투표" to view open categories then click through each subheading to view nominees.)Seoul Drama Awards2024 Outstanding OST "The Reasons of My Smiles" Seoul Music Awards 2024 Main Award (Bonsang) BSS Popularity Award Hallyu Special Award 2025 Main Prize (Bonsang) Popularity Award K-Wave Special Award K-pop World Choice – Group

Notes

References