Ichigo Rinahamu




Other Names

Yokoyama Rina (ヨコヤマリナ/横山利奈), Hamrig (solo releases post 2018)


April 11 1992 (Age 26)

Professional Status



Silly Member (おばか担当, 2010 - 2011, as a member of BiS)

Years Active


Associated Acts

BiS, Akishibu Project, Strawberry Syndrome, DOPING BERRY


J-Pop, EDM

Social Media


Rinahamu 18

Ichigo Rinahamu (苺りなはむ), real name Yokoyama Rina (横山利奈), and also known as Hamrig, is a Japanese singer, DJ and producer. She is the founder of the record label ICIGO STYLE, founding member of CY8ER and Strawberry Syndrome and a producer of DOPING BERRY.

She also produced and was a member of Akishibu Project, and was a first generation member of BiS, both under her real name.

Biography Edit

BiS, 2010-2011 Edit

In December 2010, at Pour Lui's final solo live, Yokoyama Rina was announced as a member of BiS alongside Hirano Nozomi and Nakayama Yukiko.

Yokoyama released her only album as a member of BiS, Brand-new idol Society, on March 23rd.

On June 24th, Yokoyama Rina withdrew from BiS following disagreements with the groups increasingly un-idol like behaviour.

Post-BiS, "Ichigo Rinamahu", 2012-2015 Edit

In 2012, Yokoyama formed Akishibu Project, and joined the group as both a member and its producer. She graduated on May 11th, 2014. Following her graduation, she began to perform as a soloist under the stage name "Ichigo Rinahamu". On July 8th, she reunited with BiS' at their disbandment live, the first time she took part in BiS activities since her 2011 withdrawal.

On September 15th 2014, Ichigo Rinahamu announced that she would retire from being an idol if her self-titled debut EP did not sell 5000 copies by January 15th the following year.

P9-h964h 400x400

Early 2018

On November 4th, Rinahamu announced that she would be collaborating with You'll Melt More!'s Younapi as the one-off unit Napi-Hamu. Their single, Kiramekiraririkaru, was released December 3rd.

At 10:30pm on January 15th 2015, just 90 minutes before the deadline, Ichigo Rinahamu reached the 5000 sale target for and her retirement was canceled. Her follow-up single, Hamu Tail., was released May 1st.

BPM15Q, CY8ER and ICIGO STYLE, 2015-present Edit

In 2015, Rinahamu founded the record label, ICIGO STYLE. In May, Rinahamu debuted her new unit with BURUMA CREW's DJ nicamoq, BPM15Q. On August 16th, Rinahamu released her third solo single, Poisute, Dame, Dame!

Ichigo Rinahamu

Promoting Ichigo Rinahamu (EP)

In January 2016, Ichigo Rinahamu appeared heavily in the music video for Zettai Wasureruna's “Ice Cream Popup Together”.

Throughout the rest of the year, Rinahamu would go on to form two more projects under ICIGO STYLE; the rock band Strawberry Syndrome, of which she was the vocalist and producer, was formed in April. DOPING BERRY, an idol group that Rinahamu produced but was not a member of, debuted in August.

In 2017, following the graduation of nicamoq, BPM15Q changed its name to CY8ER.

In late 2017, Rinahamu started a new solo project, Hamrig, however, kept the name Ichigo Rinahamu for all work outside of these releases. In March, she contributed vocals to Yasutaka Nakata's single, White Cube.

In late 2018, Rinahamu recorded a single, Fashion, with frequent collaborator, Yunomi. It was released on Yunomi's bandcamp in early 2019.

Rina Akishibu

As a member of Akishibu Project

Discography Edit

Solo: Edit

BiS Edit

Albums: Edit

Rina BiS

Promoting Brand-new idol Society (album)

Digital Singles: Edit

CY8ER Edit

Strawberry Syndrome Edit

Napi-Hamu Edit

Other Edit

Trivia Edit

  • Was the first BiS member to graduate.
  • Is considered a pioneer of the yume-kawaii subculture.
  • Considered re-auditioning for BiS when their reformation was announced. However, she decided that she was already happy with the direction her career was heading in.

Gallery Edit