BE:FIRST Rondo
Illustration: WhyTrend

Rondo is a BE:FIRST track from the group's ninth single, BE:FIRST ALL DAY. It is trending now because BE:FIRST used the May 11, 2026 broadcast of TBS's CDTV Live! Live! to give Rondo its first TV performance, turning a release-week track into a real-time viewing event for fans.

The timing is the main reason the topic moved quickly. BE:FIRST's official site lists BE:FIRST ALL DAY as a May 6 release and shows Rondo as the second track on the single. The group's official media page then lists the May 11 CDTV Live! Live! appearance and says Rondo would be performed on TV for the first time. That five-day sequence gave fans a clean arc: single release, dance-performance video, TV premiere, then immediate reaction posts.

For non-Japanese readers, the key context is that a major Japanese music TV slot can turn a first performance into a fandom event. The TBS archive confirms BE:FIRST as one of the May 11 artists, while the BE:FIRST page identifies Rondo as the song receiving the first TV performance on CDTV Live! Live! The trend is therefore less about a surprise announcement and more about a scheduled broadcast becoming the shared moment people watched together.

The performance content also matters. Avex described the Special Dance Performance as built around the idea of a rondo, or something that keeps circling, and later highlighted a fixed-camera Dance Practice video after the TV appearance. THE FIRST TIMES framed the song as a gothic hip-hop number with heavy performance emphasis. Those official and music-media descriptions help explain why fan conversation centered on choreography, atmosphere, and the shift from recorded dance content to live television.

What to watch next is whether Rondo keeps spreading through performance clips, dance-practice discussion, and the group's larger May schedule. BE:FIRST's first stadium live at Ajinomoto Stadium was set for May 16 and 17, and the release campaign also points ahead to another single, Missing, on July 1. If Rondo remains visible after the CDTV window, it will likely be because fans keep connecting the song to the group's live-performance identity rather than to a one-night TV spike.