Yang Jun Beom

On September 22, 2023, Yang Jun Beom was featured in the promotional photos for MEGAMETA's four-member actor-idol group, ASTEON. Individual member photos were later released introducing him as Yang Jun Beom on September 27. On December 20, it was announced that he will be featured in the January 2024 issue of @star1.

The full interview and photoshoot is released on January 4, 2024. On March 28, 2024, prologue films for ASTEON were released showing that the lineup had changed to be three members including himself. On April 1, 2025, an official trailer for the group was released, revealing a four-member lineup confirming that he would still be part of the group but with three new members.