Young, Dumb, Stupid

"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.

Background and release
On February 10, 2023, JYP Entertainment announced that Nmixx would be releasing their first extended play titled Expérgo on March 20. On March 2, the track listing for the EP was released, with "Young, Dumb, Stupid" announced as a pre-release track. The song along with its music video was released on March 13.

Composition
"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. The song was described as an "energetic", "Mixx-Pop" song that combines hip hop and a style typical of a children's song, sampling the nursery rhyme "Frère Jacques".

Critical reception
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".

Commercial performance
"Young, Dumb, Stupid" debuted at number 130 on South Korea's Circle Digital Chart in the chart issue dated March 12–18, 2023, and at number 21 on the Circle Download Chart. It peaked at number 50 on the Circle Digital Chart in the chart issue dated April 9–15, 2023.

In Singapore, the song debuted at number 27 on the RIAS Top Regional Chart in the chart issue dated March 10–16, 2023, ascending to and peaking at number 17 in the following week.