The K-POP industry is witnessing a golden era where idols successfully balance group and solo careers simultaneously, a phenomenon described as the 'dual nationality' of artists. TAEYEON from Girls' Generation pioneered this trend in 2015 with her debut solo album 'I,' which topped various streaming charts and redefined idol career trajectories. Following her success, fellow members TIFFANY, HYOYEON, and SEOHYUN launched their own distinctive solo projects, establishing the 'group member and solo artist' dual identity as a natural fixture in the Korean music scene. BLACKPINK exemplifies the global expansion of this trend, with all four members completing successful solo careers with distinct artistic colors. ROSÉ made K-POP history by reaching number 3 on Billboard's Hot 100 with her collaboration 'APT.' featuring Bruno Mars, while JENNIE dominated the Coachella stage following her debut full album 'Ruby.' LISA and JISOO have similarly carved out unique territories spanning music and acting. Remarkably, at the peak of their individual activities, BLACKPINK reunited as a complete group, releasing their full album 'DEADLINE' on the 27th of last month after approximately 3 years and 5 months, proving the collective power of the four members. BTS has similarly elevated the significance of solo activities by transforming military service gaps into growth periods, with 2024 releases including JIMIN's 'MUSE,' JUNGKOOK's 'Never Let Go,' and RM's second solo album.