It'z Different

On January 24, 2019, JYP Entertainment shared the first teaser for Itzy's debut, followed by additional images the next day.^[1][2] In the following week, individual member teasers were unveiled.^{[3][4][5][6][7]} On February 1, the first teaser for the "Dalla Dalla" music video was uploaded to JYP Entertainment's YouTube channel.^[8] On February 5, more teaser images of the members were released.^{[citation needed]} The next day, the tracklist for the single album was revealed, which included two songs: "Dalla Dalla" and "Want It?".^[9] On February 7, a voice teaser for "Dalla Dalla" was released,^[10] followed by a second music video teaser the next day.^[11] Finally, on February 12, Itzy officially debuted with the release of It'z Different and the music video for "Dalla Dalla".^[12]

Itzy began promoting It'z Different by performing "Dalla Dalla" for the first time during the live broadcast "The 1st Single Live Premiere" on Naver V Live.^[13][14] The group continued to promote the single album on South Korean music programs such as M Countdown, Show Champion, Show! Music Core, Music Bank, and Inkigayo where they earned nine music show wins for their debut song.