Get ready for more laughs! The fourth season of the TV anime Osomatsu-san is set to begin airing in July 2025 on TV Tokyo and other channels. Excitingly, it has just been revealed that DA PUMP will be performing the opening theme song, titled “Osomatsu-san no Bomba Shei!”. A comment from DA PUMP’s ISSA was also released alongside the announcement.
From left: ISSA, KIMI, KENZO, (Iyami), U-YEAH, TOMO, YORI
Based on Akatsuka Fujio’s classic gag manga Osomatsu-kun, Osomatsu-san depicts the six twin brothers as useless, NEET adults. The first season aired from October 2015 to March 2016, followed by the second season from October 2017 to March 2018. After the theatrical film Eiga Osomatsu-san was released in March 2019, the third season aired from October 2020 to March 2021.
Furthermore, to celebrate the series’ 6th anniversary, the special films Osomatsu-san ~Hipipo Zoku to Kagayaku Kajitsu~ and Osomatsu-san ~Tamashii no Takoyaki Party to Densetsu no Otomari Kai~ were released nationwide in July 2022 and July 2023, respectively. The production of the TV anime’s fourth season was initially announced on June 6, 2024, and this news trended number 1 on X (formerly Twitter) for a long time. As the TV anime reaches its 10th anniversary this year, the series continues to build anticipation.
Now, it’s been announced that DA PUMP will be taking charge of the opening theme for this highly anticipated fourth season, and the song’s title is “Osomatsu-san no Bomba Shei!”. DA PUMP is a vocal and dance group currently consisting of six members: ISSA, YORI, TOMO, KIMI, U-YEAH, and KENZO. They have produced various hit songs like “U.S.A.”, appeared on Kohaku Uta Gassen (a prestigious New Year’s Eve music program), and won the Japan Record Award’s Excellent Work Award for three consecutive years in 2020, remaining at the forefront of the music scene.
Osomatsu-san Season 4 Teaser Visual
“Osomatsu-san no Bomba Shei!” is a cover of an overseas song with original Japanese lyrics penned by m.c.A・T, who produced many hit songs for DA PUMP in their early days. The title includes “Shei!”, a famous catchphrase of the character Iyami from Osomatsu-san. There’s great excitement to see how the song will incorporate the unique flavor of the series. Furthermore, since the series features six brothers and is strongly associated with the number “6”, a preview of part of the song is planned for June 6th.
Following this announcement, a comment from DA PUMP’s ISSA has also been released:
Comment Section
DA PUMP ISSA
DA PUMP will be performing the opening theme “Osomatsu-san no Bomba Shei!” for the fourth season of the TV anime Osomatsu-san! Our master m.c.A・T infused clever Japanese lyrics into this overseas song, and the six brothers even joined in, making it a very lively and fun song! I hope everyone enjoys our playful spirit, visuals, and dancing.
The TV anime Osomatsu-san Season 4 is scheduled to begin airing in July 2025 on TV Tokyo and other channels. We eagerly await further updates!
Staff & Cast
TV Anime Osomatsu-san
Airing on TV Tokyo and others starting July 2025!
STAFF
| Director: | Odaka Yoshinori |
| Series Composition: | Matsubara Shuu |
| Character Design: | Abiko Eiji |
| Chief Animation Director: | Watanabe Haru, Wada Kasumi |
| Assistant Director: | Futamura Nene |
| Art Director: | Tamura Seiki |
| Color Design: | Kakita Yukiko |
| Photography Director: | Fukushi Tooru |
| Editing: | Sakamoto Kumiko |
| Music: | Hashimoto Yukari |
| Music Production: | Avex Pictures, TV Tokyo Music |
| Sound Director: | Kikuta Hiroshi |
| Sound Production: | Rakken SHA |
| Animation Production: | PIERROT FILMS |
CAST
| Osomatsu: | Sakurai Takahiro |
| Karamatsu: | Nakamura Yuuichi |
| Choromatsu: | Kamiya Hiroshi |
| Ichimatsu: | Fukuyama Jun |
| Juushimatsu: | Ono Daisuke |
| Todomatsu: | Irino Miyu |
| Totoko: | Endou Aya |
| Iyami: | Suzumura Kenichi |
| Chibita: | Kokuryuu Sachiko |
| Dayoon: | Tobita Nobuo |
| Dekapan: | Ueda Youji |
| Hata-bou: | Saitou Momoko |
| Matsuzou: | Inoue Kazuhiko |
| Matsuyo: | Kujira |
(C) Akatsuka Fujio／Osomatsu-san Production Committee
Written by Nakase Koutarou
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