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Taeyong from NCT 127 performs at his first ever solo concert "TY Track" [SM ENTERTAINMENT] When Taeyong broke down sobbing on Sunday in the middle of performing the autobiographical “Back to the Past” (2023) — the encore song to his first solo concert — it was as if he was relaying the lyrics to his younger self: to a lost teenage boy who thought of himself as a source of disappointment to his mother and neighbors, running away from poverty and from home.

“What will you become?” he sang as he faced the sold-out arena.