Seventeen BSS

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.