HAPPYMANATODAY_2026
Illustration: WhyTrend

HAPPYMANATODAY_2026 is a BE:FIRST fan birthday hashtag for MANATO, the group member also known as Masato Hirose. It trended because his 25th birthday on April 29, 2026 gave BESTY, the BE:FIRST fanbase, a shared reason to post messages, fan art, and celebration clips at the same time.

The first trigger was the date itself. MANATO was born on April 29, 2001, and fans began posting birthday messages around midnight in Japan. A fan-run project page for Happy Manato Day also organized a message-video effort, giving the celebration a central artifact for fans to share rather than leaving it as scattered birthday posts.

For readers outside Japan, the important context is BE:FIRST's fan culture. BE:FIRST came out of SKY-HI's audition project THE FIRST and operates in the Japanese dance-and-vocal space, where member birthdays can become coordinated fan events. MANATO's official profile frames him as a Fukuoka-born artist in the group, while background coverage emphasizes his singing, dance, and performance history.

The trend also overlapped with broader BE:FIRST visibility. The First Times reported in April 2025 that JUNON and LEO were tied to the Suntory Nama: FIRST project, showing how BE:FIRST member activity can extend into brand and media projects around the group. That context helps explain why a birthday hashtag can travel beyond the core fan feed.

What to watch next is whether the birthday posts turn into longer fan edits, concert-season attention, or renewed discovery of MANATO's performances. The trend is time-sensitive, but it is useful for English readers who see the hashtag and need to understand why BE:FIRST fans are posting it.