Naniwa Danshi on Fuji TV 'STAR'
Illustration: WhyTrend

What happened

Naniwa Danshi — an idol group (a pop act whose members are marketed individually to fans) signed to Japan's STARTO ENTERTAINMENT agency — appeared on Fuji TV's music program 'STAR' at 7:00 p.m. JST (JST is Japan Standard Time) on June 4, 2026. They opened with their signature song 'Diamond Smile' and later performed 'Celebrate', a track from their latest album. The show's official account designated #DiamondCelebrate as the segment's hashtag and asked fans to post their reactions in real time.

Why it is trending now

Three things landed at once. First, the white-tuxedo staging of 'Diamond Smile' was widely praised for its visual polish. Second, member Kazuya Ohashi performed a fifth-anniversary dajare (a Japanese pun)–style comedy gag that the broadcaster itself singled out for fan comments. Third, the official hashtag funneled posts so quickly that the topic reached No. 1 on Japan's X trends within minutes of airing.

How fans reacted

Fan posts leaned overwhelmingly positive, mixing visual awe ('too princely'), pride over the instant trend ranking, and emotional notes about the group's five-year milestone. The newer song 'Celebrate' was read by fans as a callback to the group's journey since debut.

What to watch next:

With no official streaming link or English-language coverage confirmed yet, watch for whether Fuji TV or the group post archive clips, and whether 'Celebrate' gets a standalone release or music video that could widen the song's reach beyond the live broadcast.