when did itzy debut

ITZY debuted on February 12, 2019. This marked the launch of their career under JYP Entertainment with the single album IT'z Different and title track "DALLA DALLA."

Debut Details

That debut day was electric—ITZY burst onto the K-pop scene as bold "monster rookies," dropping a self-love anthem that resonated instantly with fans worldwide. "DALLA DALLA" wasn't just a song; it embodied their "girl crush" vibe, confident choreography, and unapologetic energy, quickly topping charts and earning them their first music show win just nine days later on M Countdown (February 21, 2019).

The group, made up of Yeji, Lia, Ryujin, Chaeryeong, and Yuna, had pre-debut hype from members' survival show appearances, like Ryujin on Mix Nine and Chaeryeong on SIXTEEN.

Quick Timeline

Here's a snapshot of their explosive start:

Milestone| Date| Notes 17
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Debut Release| February 12, 2019| IT'z Different album, "DALLA DALLA" MV
First Music Win| February 21, 2019| M Countdown – Record-breaking speed
Fandom Name Reveal| March 2020| "MIDZY" (sounds like "midzy" for trust)

Lasting Impact

From day one, ITZY redefined 4th-gen girl groups by blending fierce performance with empowering messages—no cute concepts, just raw talent and swagger. Fast-forward to 2026, they've evolved with hits like Not Shy (2020) and Japanese debuts, solidifying their global status while staying true to that original fire. Fans still celebrate February 12 as a K-pop milestone, with "DALLA DALLA" views surpassing hundreds of millions.

TL;DR : ITZY debuted February 12, 2019, with "DALLA DALLA"—a game-changer that launched their unstoppable rise.

Information gathered from public forums or data available on the internet and portrayed here.