On March 21, 2026, Kim Sung-kyu dropped a fresh Instagram update: a '#When I Think of You' vocal challenge featuring YOUNITE member Eunho — immediately drawing buzz for his emotive vocals.
In the photos, Kim Sung-kyu wears a comfy denim jacket, holding a mic as he sings. His laser focus and earnest vibe stand out.
Fans are begging for more, showering him with praise for his tone. With reactions like "His tone is so good," many are expressing their love for his music.