[2][3] International Global Media began promoting the EP on July 9, 2019, with the group teaser posters.

[5] The music video for the title track was released at midnight of the same day and accumulated 18.1 million views within 24 hours.

[6] On August 2, the dance practice video for "Icy" was released on Itzy's official YouTube channel.

[7] On August 5, It'z Icy debuted and peaked at number 11 on the US Billboard World Albums chart and at number 19 on the Billboard Heatseekers Albums, making it their first entry on both charts.

[10][11] It'z Icy also entered at number 10 on Oricon Digital Albums chart.