It is the group's second Japanese maxi single.

The song was released by Warner Music Japan on October 5, 2022.

[1] The release contains four tracks, including the title song "Blah Blah Blah" and the B-side "Can't tie me down" with the instrumental versions of the songs.

Lyrically, it is about "moving forward confidently without being swayed by other people's words".

[4] On August 5, JYP Entertainment announced through their Japanese website that Itzy will hold their first offline special event in Japan exclusively for "Itzy Japan Official Shop!".