"Pyoco Pyoco Ultra" (ピョコピョコ ウルトラ, Pyokopyoko urutora, "Bouncy Bouncy Ultra" or "Peep Peep Ultra") is the 48th single by the J-pop group Morning Musume, released in Japan on January 25, 2012 on the Zetima label.

[1][2] It is the first single to feature 10th generation members (Haruna Iikubo, Ayumi Ishida, Masaki Sato and Haruka Kudo).

The single was originally supposed to be released on December 21, 2011, but was delayed to January 25, 2012.

[citation needed] Pyoco Pyoco Ultra Vocalists Main Voc: Risa Niigaki, Reina Tanaka Center Voc: Sayumi Michishige, Mizuki Fukumura, Riho Sayashi Minor Voc: Aika Mitsui, Erina Ikuta, Kanon Suzuki, Haruna Iikubo, Ayumi Ishida, Masaki Sato, Haruka Kudo Kanashiki Koi no Melody Vocalists Main Voc: Reina Tanaka Center Voc: Risa Niigaki, Sayumi Michishige, Riho Sayashi Minor Voc: Aika Mitsui, Mizuki Fukumura, Erina Ikuta, Kanon Suzuki, Haruna Iikubo, Ayumi Ishida, Masaki Sato, Haruka Kudo "Pyoco Pyoco Ultra" is the opening song for the Nippon Television series Sūgaku Joshi Gakuen, starring many Hello!

Project members[3] (the closing theme being "Hatsukoi Cider" by Buono!).