The mystery OP singer challenge is fun marketing—getting fans to speculate and discuss who's performing before the reveal builds hype. January 14 can't come soon enough; after Season 2's cliffhanger, fans need to see what happens next. Oshi no Ko's openings are always bangers; both "IDOL" and Season 2's opening set high bars for anime music. The teaser has me curious who's singing—just a few notes isn't much to go on, making the guessing game even more challenging.

How good is your anison knowledge? Could you guess a singer in just a few notes? That's the challenge presented by the latest [OSHI NO KO] Season 3 teaser: a brief taste of the new, as-yet-unannounced opening theme song. The song's title and performer will be announced at the season's advance screening on December 28.

LISTEN TO THE THEME SONG TEASER: [OSHI NO KO] Season 3 Theme Song Teaser

WATCH THE SEASON 3 TRAILER: [OSHI NO KO] Season 3 Trailer

Season 3 key visual

Opening Theme Mystery

Can you figure out who's singing? The brief teaser challenges fans to identify the vocalist before the official reveal at the advance screening.

Reveal Date: December 28 (advance screening)

Production Staff

Director: Daisuke Hiramaki (Asteroid in Love)

Animation Studio: Doga Kobo

Series Composition: Jin Tanaka

Character Design: Kanna Hirayama

Music: Takuro Iga

About the Series

The series is based on the manga written by Aka Akasaka (Kaguya-sama: Love is War) and illustrated by Mengo Yokoyari (Scum's Wish).

Premiere Information

Date: January 14, 2026

Can you guess who's singing the opening? What are your predictions? Are you excited for Season 3? Which previous Oshi no Ko opening is your favorite? Share your thoughts in the comments below!