"Ditto" is a song by the South Korean girl group NewJeans, released on December 19, 2022, by ADOR, a label of Hybe Corporation. The producer 250 composed "Ditto" with Ylva Dimberg, who wrote the lyrics with the Black Skirts, Oohyo, and NewJeans' member Minji. With a sound rooted in Baltimore club, the track incorporates a balladic electronic and dance production with influences of house, breakbeat, and UK garage. The lyrics are about reminiscing a platonic love.