Dalla Dalla

Written and composed by the music production group Galactika, the song is a "fusion" track that includes elements of EDM, hip hop, electropop, and house.

Nine months after release, the song was certified platinum by the Korea Music Content Association (KMCA) for achieving 100 million streams.

To promote the track, Itzy appeared on several music programs in South Korea, and won nine first-place trophies.

[3] On January 21, a video titled "PROLOGUE FILM: ITZY" was released by JYP Entertainment on their official social media accounts unveiling the name and the members of the group.

[7] A remix version of the song was included on the group's debut extended play (EP), It'z Icy, which was released on July 29, 2019.

[11] It has been described as a lively and upbeat "fusion groove" song that includes elements of popular genres, such as EDM, hip hop, electropop and house.

Tamar Herman of Billboard called the track an "empowering anthem, introducing ITZY as a group that's an alternative to its peers," as well as "feisty and quick to shift tempos and genres," highlighting its "hip-hop breakdowns" throughout.

The only choice for JYP style is the old-fashioned 'I'm different' narrative and the 'Gapbunpong (suddenly mood)' chorus, like Miss A's' "I Don't Need a Man", which eventually leads to the same woman with an arrow of blame.

"[13] Writing for Kotaku, Seung Park judged it to be an "eclectic mashup of a mature version of some of Red Velvet's more esoteric work with Blackpink or 2NE1's hip-hop-esque aesthetic."

Park added that the song is a "solid opening bell of what is shaping up to be a long and interesting career.

"[18] Yoon So-yeon of Korea JoongAng Daily wrote that the music video reminds of other "K-pop girl groups such as Blackpink or 4Minute, who also went for powerful feminine vibes.

"[1] While, K-Pop Herald's Hong Dam-young said, "The act's efforts to differentiate itself from the herd is also shown in the single's vibrant music video, where the girls showcase their badass vibe while clad in flashy sequined outfits.