On March 20, 2026, Stray Kids celebrated Hyunjin’s birthday by dropping a special Instagram post featuring a series of striking poses and a celebratory message—and it quickly drew global attention. The caption read "HAPPY BIRTHDAY HYUNJIN" alongside the hashtags #HappyHyunjinDay, #StrayKids, and #Hyunjin. The comments section overflowed with love from fans around the world, including messages like "TE AMOOO," "Feliz cumpleaños buu," "С днём рождения хёнджин!)," and "Happy birthday hyunjin."