Happy Summer Wedding

is the ninth single of the J-pop idol group Morning Musume, released on. It sold a total of 990,950 copies, becoming a number-one hit in Japan. This also marks the last single of Sayaka Ichii and the debut of the "Fourth Generation" Morning Musume members Hitomi Yoshizawa, Rika Ishikawa, Ai Kago and Nozomi Tsuji.

Track listing

 * 1) "Happy Summer Wedding" – 4:50
 * 2) "Tsūgaku Ressha" – 4:32
 * 3) "Happy Summer Wedding (Instrumental)" – 4:46

Members at time of single

 * Natsumi Abe
 * Kaori Iida
 * Yuko Nakazawa
 * Mari Yaguchi
 * Kei Yasuda
 * Sayaka Ichii(Last single)
 * Maki Goto
 * Hitomi Yoshizawa(Debut)
 * Rika Ishikawa (Debut)
 * Ai Kago (Debut)
 * Nozomi Tsuji (Debut)