19.99 (EP)

19.99 is the third extended play (EP) by South Korean boy band BoyNextDoor, released on September 9, 2024, through KOZ Entertainment, five months following the preceding EP How? (2024). Reflecting on the process of coming of age, the EP departed from the narrative explored in the preceding three releases and focused on self-expression and introspection.

With members Jaehyun, Taesan, and Woonhak credited for writing the EP's tracks, 19.99 explores the anxieties of the youth before they turn twenty. The EP was supported by two singles: "Dangerous" and "Nice Guy".