ONE N' ONLY unveiled a dance performance video for "Beast Mode," bringing the track's raw intensity to life with striking choreography. The song, which appears on the group's major second single "WARAiNA" released in April 2026, showcases the five-member group's signature dark, hard-hitting sound paired with aggressive rap verses.

The standout element here is the choreography itself. INFINITY TWIGGZ, leader of FULLCAST RAISERZ—the team that won the inaugural D.LEAGUE 2025-26 Championship—crafted the moves. Twiggz incorporated clamp dancing throughout the routine, a style that mirrors the song's combative vibe and reinforces the "beast mode" concept. The result is a performance that radiates competitive fire and technical precision.

"Beast Mode" exemplifies what ONE N' ONLY does best: blending polished production with an edgy aesthetic that resonates across their fanbase. The song's dark, intense instrumentation pairs perfectly with the visual energy the group brings to the performance video.

ONE N' ONLY, under Stardust Promotion, has built a significant following since debuting in 2018. The group originally gained attention for their TikTok presence, amassing over 5.8 million followers—the highest among Japanese male music artists on the platform. Their track record includes chart success (like 2019's "Dark Knight" topping the Oricon and Billboard JAPAN HOT 100), international tours, and consistent releases.

This year has been particularly active for the group. Beyond "WARAiNA" in April, they released the arena tour theme song "INFERNO" in June and are slated to perform at Music Station 2026 alongside acts like &TEAM, INI, and Sakurazaka46. The "Beast Mode" video continues their momentum, giving fans a fresh look at how the group interprets their increasingly ambitious material through performance.