Changgero Sonic is an event organized by the Japanese singer and utaite Gero. It is a live festival event that features performances from various utaite and singers, including Gero himself.

Changgero Sonic features performances of popular Vocaloid songs, as well as an original song created for the event each year since 2018. The event has gained a dedicated following among fans of the utaite community, and it provides a platform for up-and-coming singers to showcase their talents and connect with fans.

Since 2018, Utsu-P has consistently been invited to play as the opening DJ every year.

• Changgero Sonic 2018
• Changgero Sonic 2019
• Changgero Sonic 2020
• Changgero Sonic 2021
• Changgero Sonic 2022