It'z Me features a collaboration with Dutch DJ and electronic music producer Oliver Heldens.

The album received generally positive reviews from critics, who commended Itzy's overall sound becoming harder and featuring more electronic productions.

"ITZY finished filming the music video for their comeback ahead of their showcase tour in the United States.

On January 28, 2020, it was reported that Itzy had finished filming their music video for a new song and are in the final stages of comeback preparations.

On February 13, News1 reported that ITZY are in the final stages of preparation to make a comeback on March 9.

In the response to the article, JYP Entertainment commented: “It is true that they are preparing to make a comeback with March 9 in mind.

"24Hrs" is a "quirky-pop stomper" that indicates the girls’ full existence for “24 Hrs”, and claims their freedom and self-determination to what comes their way.

It is the only K-pop track to feature a production from Sophie, the musician that helped pioneer the 2010s hyperpop genre.

Commercially, the single reached the charts in eight countries, peaking at number six in South Korea.

[22] "Wannabe" also marks the group's debut on the Canadian Hot 100 at number 92, becoming only the seventh K-pop female act to appear on the chart (after CL, Red Velvet and Twice).

Contrary to intention, however, there are traces of numerous' Wannabe 'like the song title at this point where the members' voices are gathered together.

JYP's unique and vibrant image is gathered in a combination of two-one-one melody and refrain of metal guitar riff, five-member composition and vocal operation overlapping Blackpink and Red Velvet, and inherited from Miss A and Twice.

"[32] Writing for Billboard, Jeff Benjamin said that "Itzy continue their string of empowering and confident singles with the most striking difference in It'z Me coming from the group's overall sound becoming harder and featuring more electronic productions."

"Wannabe" debuted at number 6 on the Gaon Digital Chart, giving the group their third top ten song.

[22] "Wannabe" also marks the group's debut on the Canadian Hot 100 at number 92, becoming only the fifth K-pop female act to appear on the chart.