Every tenth birthday of theirs, Utada has hosted a special event. In 2003, for their twentieth birthday, they hosted , which was
Japan's largest live streaming event ever at the time. Later, in their thirties, they hosted , which was a
virtual reality event. As such, it was announced in 2022 that a special event would happen for their fortieth in 2023. The live stream event opened with a
DJ set from DJ Yanatake featuring some of Utada's most popular songs such as "
Simple and Clean," "
Automatic," and "
Heart Station," among many others, after which Utada answered questions from their fans. Actors
Yuriko Yoshitaka and
Takeru Satoh then made surprise appearances. To conclude the event afterward, Utada performed their songs, "First Love" and "Kimi ni Muchū," and covered "
Me Porto Bonito" by
Bad Bunny. (Utada's live version of "Kimi ni Muchū" featured new lyrics in not just
Japanese but also
English and
Italian.) Around 80,000 people viewed the live stream event. Later, DJ Yanatake's opening mix was also uploaded to YouTube on February 3, and new photos of Utada, taken by Mibe Masahiro, were shown on Utada's website. On February 17, a director's cut of the live stream event was uploaded to
YouTube, and a single with the live versions of "First Love" and "Kimi ni Muchū" was released on streaming platforms. Additionally, on March 23, a video with behind-the-scenes footage, and an interview with sound engineer Steve Fitzmaurice, was uploaded to YouTube, and starting on March 31, Sony stores across Japan hosted three-dimensional listening events for the single. == Single ==