Onegai Bach!

"Onegai Bach!"
Type A cover, featuring Nao Kosaka and Miku Kanemura
Single by Hinatazaka46
English titlePlease, Bach!
B-side
  • "Sora Tobu Kuruma"
  • "Rival Oosugi Mondai"
  • "Ai wa Kocchi no Mono da 2025"
  • "Kotoba no Genkai"
  • "Halloween no Kabocha ga Wareta 2025"
  • "Expected Value"
ReleasedSeptember 17, 2025 (2025-09-17)
GenreJ-pop
Length4:44
LabelSony Music Entertainment Japan
ComposerHikaru Ishizaki
LyricistYasushi Akimoto
ProducerYasushi Akimoto
Hinatazaka46 singles chronology
"Love Yourself!"
(2025) 		"Onegai Bach!"
(2025) 		"Cliffhanger"
(2026)
Music video
"Onegai Bach!" on YouTube
"Sora Tobu Kuruma" on YouTube
"Kotoba no Genkai" on YouTube

"Onegai Bach!" (Japanese: お願いバッハ！; lit. 'Please, Bach!') is the fifteenth single by Japanese girl group Hinatazaka46, released on September 17, 2025, by Sony Music Entertainment Japan. It features Miku Kanemura and Nao Kosaka in a double center (lead performer) position. The single debuted atop the weekly Oricon Singles Chart.

Production and release

The title track features a lineup of all 19 second, third, and fourth generation members, with Miku Kanemura and Nao Kosaka serving as double centers (lead performers). The single marks the final participation of second generation member Hina Kawata, who would leave the group following its release. It is also the group's first single released following the departure of Suzuka Tomita. A sample of "Air on the G String", based on Johann Sebastian Bach's Orchestral Suite No. 3, was included in the title track arrangement.[1][2]

The single's B-side included the second fifth generation members' exclusive song "Sora Tobu Kuruma",[3] and "Kotoba no Genkai" features Hina Kawata as center. Other B-sides include updated 2025 versions of past tracks with all-new singer lineups: "Ai wa Kocchi no Mono da 2025" was originally performed by the group's founding members, who had all left the group, and released on "One Choice" (2023); "Halloween no Kabocha ga Wareta 2025" was originally on the album Hashiridasu Shunkan (2018), released under the group's previous name, Hiragana Keyakizaka46.[4]

"Onegai Bach!" was released on physical media on September 17, 2025, in five editions: four limited editions (Types A to D) featuring Blu-ray discs, and a regular CD-only edition. The Blu-ray discs included footage from the "Over the Rainbow" concert, held at the Yoyogi National Gymnasium on May 28–29, 2025 (Type A);[5] the fifth generation's introduction live "reception event" (おもてなし会, omotenashi-kai), held at the same venue on May 27, 2025 (Type B);[6] and "personal videos", such as original music videos and short films, by the fifth generation members (Types C and D).[3]

Reception

"Onegai Bach!" debuted at number one on the weekly Oricon Singles Chart, with over 451,000 physical copies sold in its first week, marking the group's 15th consecutive number-one single since their debut.[7] It also topped the Billboard Japan Top Singles Sales chart with 527,439 copies sold in its first week.[8] Furthermore, the Special Edition of the single debuted at number one on the Oricon Weekly Digital Albums ranking.[9]

Natalie praised the "elegant" choreography of the title track's music video, filmed in Hokkaido with the theme of "New Classic", noting in particular the scene where the members were positioned according to the actual musical notations of "Air on the G String" on a large musical stave on the ground.[2]

Track listing

  1. "Onegai Bach!"
  2. "Sora Tobu Kuruma" (空飛ぶ車; lit. 'Flying Car')
  3. Different tracks on each type:
    • Type A: "Rival Oosugi Mondai" (ライバル多すぎ問題; lit. 'Too Many Rivals Problem')
    • Type B: "Ai wa Kocchi no Mono da 2025" (愛はこっちのものだ 2025; lit. 'Love is Our Thing 2025')
    • Type C: "Kotoba no Genkai" (言葉の限界; lit. 'Limits of Words')
    • Type D: "Halloween no Kabocha ga Wareta 2025" (ハロウィンのカボチャが割れた 2025; lit. 'Smashed Halloween Pumpkin 2025')
    • Regular: "Expected value"
  4. "Onegai Bach!" (off-vocal)
  5. "Sora Tobu Kuruma" (off-vocal)
  6. Off-vocal versions of track 3

Personnel

Lineups obtained from official website.[1][10]

"Onegai Bach!"

Centers: Miku Kanemura, Nao Kosaka

  • 1st row: Kaho Fujishima, Miku Kanemura, Nao Kosaka, Yōko Shōgenji
  • 2nd row: Hinano Kamimura, Honoka Hirao, Hina Kawata, Rina Watanabe, Konoka Matsuda, Sumire Miyachi, Mikuni Takahashi
  • 3rd row: Kirari Takeuchi, Nanami Konishi, Haruyo Yamaguchi, Tamaki Ishizuka, Haruka Yamashita, Marie Morimoto, Rio Shimizu, Mitsuki Hiraoka

"Sora Tobu Kuruma"

Center: Sakura Matsuo

All fifth generation members:

  • 1st row: Rika Takai, Manami Ōno, Sakura Matsuo, Yu Satō, Niko Tsurusaki
  • 2nd row: Nina Sakai, Hinano Kuramori, Saki Katayama, Izuki Shimoda, Mizuki Ōta

"Rival Oosugi Mondai"

Miku Kanemura, Mikuni Takahashi, Tamaki Ishizuka, Rio Shimizu, Rina Watanabe

"Ai wa Kocchi no Mono da 2025"

Performed by all members

"Kotoba no Genkai"

Center: Hina Kawata

  • 1st row: Konoka Matsuda, Mikuni Takahashi, Hina Kawata, Miku Kanemura, Nao Kosaka
  • 2nd row: Nanami Konishi, Kaho Fujishima, Sumire Miyachi, Haruka Yamashita, Marie Morimoto, Yōko Shōgenji, Rio Shimizu
  • 3rd row: Haruyo Yamaguchi, Honoka Hirao, Kirari Takeuchi, Mitsuki Hiraoka, Hinano Kamimura, Tamaki Ishizuka, Rina Watanabe

"Halloween no Kabocha ga Wareta 2025"

Hinano Kamimura, Marie Morimoto, Honoka Hirao, Mitsuki Hiraoka, Haruka Yamashita

"Expected Value"

Performed by all members

Charts

References

  1. ^ a b "Formation". 日向坂46公式サイト. Retrieved 2026-03-07.
  2. ^ a b "日向坂46が譜面の上で優美に踊る「お願いバッハ！」MV公開、金村美玖＆小坂菜緒Wセンター曲（動画あり）". 音楽ナタリー (in Japanese). Retrieved 2026-03-07.
  3. ^ a b "日向坂46五期生曲「空飛ぶ車」明日先行配信、個人PV予告編も公開（動画あり）". 音楽ナタリー (in Japanese). Retrieved 2026-03-14.
  4. ^ "日向坂46、15thシングル『お願いバッハ！』CD収録楽曲公開 歌唱メンバー＆特典映像も". Real Sound｜リアルサウンド (in Japanese). 2025-09-02. Retrieved 2026-03-14.
  5. ^ "＜ライブレポート＞「新しく生まれ変わることではなくて、新しい何かが生まれること」日向坂46が導き出した未来への答え【BRAND NEW LIVE 2025「OVER THE RAINBOW」】 | Daily News". Billboard JAPAN (in Japanese). Retrieved 2026-03-14.
  6. ^ "五期生「おもてなし会」SPECIAL SITE". 日向坂46公式サイト. Retrieved 2026-03-14.
  7. ^ "日向坂46、初週売上45.1万枚で1stから15作連続のシングル1位【オリコンランキング】". オリコンニュース（ORICON NEWS）. Retrieved 2026-03-07.
  8. ^ "【ビルボード】日向坂46『お願いバッハ！』52.7万枚でシングル1位 | Daily News". Billboard JAPAN (in Japanese). Retrieved 2026-03-07.
  9. ^ "日向坂46『お願いバッハ！（Special Edition）』初登場1位獲得【オリコンランキング】". オリコンニュース（ORICON NEWS）. Retrieved 2026-03-07.
  10. ^ "日向坂46 15thシングル「お願いバッハ！」2025.9.17 wed Release!". 日向坂46公式サイト. Retrieved 2026-03-14.
  11. ^ "Billboard Japan Hot 100 – Week of September 24, 2025". Billboard Japan (in Japanese). Retrieved March 7, 2026.
  12. ^ "Oricon Weekly Single Ranking – 2025-09-29". Oricon News. Retrieved March 7, 2026.
  13. ^ "Oricon Top 50 Combined Singles: 2025-09-29" (in Japanese). Oricon. Retrieved March 7, 2026.
  14. ^ "Oricon Top 50 Digital Albums: 2025-09-29" (in Japanese). Oricon. Retrieved March 7, 2026.
  15. ^ "Oricon Top 50 Singles: 2025-09" (in Japanese). Oricon. Retrieved March 7, 2026.
  16. ^ "Billboard Japan Top Singles Sales – 2025 Year-End". Billboard Japan (in Japanese). Retrieved March 7, 2026.
  17. ^ "Oricon Top 100 Singles: 2025" (in Japanese). Oricon. Retrieved March 7, 2026.
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