"Young, Dumb, Stupid" is a song recorded by South Korean girl group Nmixx for their first extended play Expérgo.

It was released as the EP's pre-release single by JYP Entertainment on March 13, 2023.

On February 10, 2023, JYP Entertainment announced that Nmixx would be releasing their first extended play titled Expérgo on March 20.

[3] "Young, Dumb, Stupid" was written by Oh Hyun-seon (Lalala Studio), Moon Yeo-reum (Jam Factory), Lee Seu-ran (Jam Factory), and Park Sang-yu (PNP), and composed by members of the production team The Hub, including Brain U, Honey Noise, Brown Panda, Frankie Day, and Awry.

[5] Lim Dong-yeop wrote for IZM that the song's "familiar tune immediately arouses initial interest, but interest waned due to the simple melody that everyone knew".