Hy4 4yh

hy4_4yh (read as Hyper Yo Yo (ハイパーヨーヨ)) is a female rap duo.

They were formed in 2005 as OTOME⑤ with five members and changed their name to YO_OY later that year with the departure of Furukawa and entry of Imai. In 2006, they changed to their current name after Imai's departure.

Current members

 * yukarin (Founding Member)
 * chanchala (Founding Member)

Former Members

 * Furukawa Eriko (古川英利子) (Founding Member, Left June 2005)
 * Imai Hitomi (今井仁美) (Joined June 2005, Left 2006)
 * Milano (Founding Member, Left October 2008)
 * Sadachi (Founding Member, Left March 2014)

Albums

 * 1) [2005.xx.xx] YO-ban! (YO盤!) (as YO_OY)
 * 2) [2006.05.28] Hyper Yo-ban (ハイパーヨー盤)
 * 3) [2007.01.07] Zoku Hyper Yo-ban (続ハイパーヨー盤)
 * 4) [2007.08.05] Hyper Yo-ban 3 Natsu no Shou (ハイパーヨー盤3 夏の章)
 * 5) [2007.11.23] Hyper Yo-ban 3 Fuyu no Shou (ハイパーヨー盤3 冬の章)
 * 6) [2012.05.16] Hyper Yo-ban 4 (ハイパーヨー盤4)
 * 7) [2014.01.29] STAR☆TING
 * 8) [2016.08.10] YAVAY

Best Albums

 * 1) [2012.02.22] Hyper Yo-ban + Zoku Hyper Yo-ban (ハイパーヨー盤 + 続ハイパーヨー盤)
 * 2) [2012.03.21] Hyper Yo-ban 3 ~ Natsu no Shou & Fuyu no Shou (ハイパーヨー盤3〜夏の章&冬の章)
 * 3) [2012.11.21] HYPER SINGLE COLLECTION＋2 :The Early Days 2008-2010

Cover Albums

 * 1) [2015.10.28] Hyperyo△ no Seishun J-RAP (ハイパヨ△の青春J-RAP)

Singles

 * 1) [2008.05.03] Mimirara Mirai (ミミララ未来)
 * 2) [2008.07.12] Katte ni Cinderella II (勝手にシンデレラII)
 * 3) [2008.10.13] Taiyou to Issho (たいようといっしょ)
 * 4) [2009.04.19] Singalong (シンガロング)
 * 5) [2009.07.26] Humming Bird (ハミングバード)
 * 6) [2009.11.11] OH! Seishun!! (OH!青春!!)
 * 7) [2010.04.18] Haru Uta (ハルウタ)
 * 8) [2010.07.04] 444 no Kiseki (444のキセキ)
 * 9) [2010.12.19] SPEEDY WONDER
 * 10) [2012.02.22] U☆CHU
 * 11) [2012.03.21] We ♡ OT / Kanzen Kouryaku (Live Edit) (We ♡ OT/完全攻略 (Live Edit)) (with Negicco)
 * 12) [2012.04.04] Yukeyuke GOGO Onnanoko!! (ゆけゆけGOGO女の子!!)
 * 13) [2012.07.11] BEACH POWER
 * 14) [2012.10.03] TAMA FREE!
 * 15) [2013.04.04] Tickeee Daisakusen! ~ YAVAY (ティッケー大作戦!〜YAVAY)
 * 16) [2013.07.10] Hanabeat (はなびーと)
 * 17) [2014.04.23] Bukubuku / ×YO×× (ぶくぶく/×YO××)
 * 18) [2014.07.30] Tickeee on the Beach (ティッケー・オン・ザ・ビーチ)
 * 19) [2014.12.03] YAVAY JAPAN 2020 / OH!SISTA
 * 20) [2015.05.13] LOVE GENOME / Tengoku⇔Jigoku 2015 (LOVE GENOME/天国⇔地獄 2015)
 * 21) [2017.12.20] SHIBAHAMAX ~ Shibahama Daitai Konnanji (SHIBAHAMAX～シバハマだいたいこんなんじ)
 * 22) [2018.07.18] Ningen Kousaten Gozen 10ji 40bun (人間交差点 午前10時40分)