Sayashi Riho, born May 28, 1998 in Hiroshima Prefecture, Japan, is a Japanese pop singer under Hello! Project. She is a 9th generation member of the Japanese pop group Morning Musume.

In 2010, Riho was one of the winners of the Jc&Jk; actress audition and got a chance to perform in Morning Musume's "Fashionable" stage play.

Sayashi Riho passed Morning Musume's 9th generation auditions, along with Ikuta Erina, Suzuki Kanon and former Hello! Pro Egg Fukumura Mizuki.
The ninth generation members debuted in Morning Musume January 2nd, at the Hello! Project 2011 WINTER ~Kangei Shinsen Matsuri~ concert.

Riho's debut single in Morning Musume is titled "Maji Desu ka Ska!".

On March 27th, 2011, it was announced Riho would be replacing Mano Erina for the radio show "Mano Deli", renaming it "Riho Deli".

Sayashi was the only ninth generation member to receive solo lines in "Only You".

On July 29, 2011 it was revealed Riho will be out of events for at least 6 weeks to rest due to ischium nerve pain on her right side.

Sayashi graduated from Morning Musume on December 31, 2015 and halted activities in Hello! Project to study language and dance abroad. On December 7, 2018, it was that announced her contract with UP-FRONT PROMOTION had ended and she subsequently graduated from Hello! Project at the end of November 2018.

She resumed entertainment activities on March 30, 2019.

(Source: Hello! Project Wiki) Edit Biography