The sub-unit consists of three members: Seungkwan , DK , and Hoshi . The number 301 is a common shorthand or "code" used by fans (Carats) to represent this specific trio: 3 members in the unit.
The "proper feature" related to (the K-pop group) and the number 301 typically refers to their highly popular sub-unit BSS (BooSeokSoon) and their record-breaking hit song "Fighting." 💎 The "301" Connection: BSS Seventeen 301
: Their 5th Studio Album, HAPPY BURSTDAY (released May 2025), features 13 solo tracks—one for every member—showcasing their individual "proper" musical styles. The sub-unit consists of three members: Seungkwan ,
: Recent tracks have featured Western legends like Timbaland and Pharrell Williams . HAPPY BURSTDAY (released May 2025)
