HR

 is a Japanese idol group. Their name is stands for Hataka Reboot.

Kenkyuusei

 * Aizawa Yuina (藍沢唯菜)
 * Yuuki Aya (結城彩)
 * Yoshikawa Momo (吉川もも)
 * Amamoto Miori (天本みおり)

1st Generation

 * Shimamoto Kurumi (島本くるみ)
 * Onoda Moka (小野田百花)
 * Tanaka Yuna (田中優奈)
 * Saya Yuuki (佐矢優樹)
 * Uchiyama Reina (内山玲菜)
 * Aoki Mako (青木まこ)
 * Kinoshita Sachie (木下さちえ)
 * Nakama Ayane (仲間彩音)
 * Nagai Airi (永井愛里)
 * Ikumi Hikari (伊久美光里)
 * Uehara Asami (上原あさみ)
 * Himeno Kaori (姫野香里)
 * Mikami Akiho (美神亜希穂)
 * Miyamoto Fumi (宮友楓未)
 * Miyamoto Ikumi (宮友郁未)
 * Umemoto Haruka (梅本はるか)
 * Yanagita Maho (柳田真帆)
 * Okada Yumiko (岡田ゆみこ)
 * Nakahara Miku (中原未來)
 * Hoshino Seina (星野聖奈)

1.5th Generation

 * Murayama Tomomi (村山友美)

2nd Generation

 * Takenaka Eri (竹中絵里)
 * Aihara Kana (相原加奈)
 * Ito Momoka (伊東桃花)
 * Sakurai Rena (桜井玲奈)
 * Ikeuchi Mai (池内茉衣)
 * Natsume Moe (夏目もえ)
 * Nishiyama Rara (西山羅良)
 * Nakatani Wakana (中谷和奏)
 * Ogata Shizuka (緒方静香)
 * Takamine Shiori (高峰汐里)
 * Aiba Suzuka (相羽涼花)
 * Hino Yuria (日野優里亜)
 * Kiyohara Chiaki (清原千明)
 * Nakamura Karen (中村可恋)
 * Kume Chisato (久米知里)
 * Kunimoto Marina (國本満里菜)
 * Kobayashi Mayu (小林まゆ)

3rd Generation

 * Kitazawa Kaori (北沢かおり)
 * Ichinose Ruka (一ノ瀬瑠花)
 * Nakamura Miyuki (仲村みゆき)
 * Maeda Atsuko (前田温子)
 * Asakura Nana (朝倉なな)
 * Inami Junna (井波絢菜)
 * Shirokawa Narisa (城川菜里紗)
 * Takeuchi Yuzuki (竹内優月)
 * Takahashi Haruka (高橋春佳)

4th Generation

 * Kiritani Manaka (桐谷愛華)
 * Sato Nozomi (佐藤希望)
 * Nonaka Yuu (野中優)
 * Sasaki Aya (佐々木彩)
 * Asano Miharu (朝野美晴)

4.5th Generation

 * Tsukamoto Yuri (塚本結莉)

5th Generation

 * Hitani Akari (日谷朱理)
 * Kinoshita Maho (木下美穂)
 * Oguro Saya (大黒沙綾)
 * Fukunaga Kaoru (福永薫)
 * Otsuka Miki (大塚美貴)
 * Morinaga Arisa (森永亜理沙)
 * Yasuda Rei (安田玲)

6th Generation

 * Haruno Yuuka (春野ゆうか)
 * Matsuda Mao (松田麻央)
 * Sakurai Misaki (桜井実咲)
 * Yamamoto Mariya (山本まりや)
 * Nanase Eri (七瀬恵梨)
 * Kobayashi Akiha (小林明葉)
 * Shiraishi Arisa (白石ありさ)
 * Shiina Sato (椎名紗都)
 * Fukuhara Risa (福原梨紗)
 * Mochizuki Ayaka (望月彩華)
 * Aoki Tsubasa (青木翼)

7th Generation

 * Nishiyama Sayaka (西山沙也香)
 * Ishikawa Rino (石川鈴乃)
 * Ohara Rei (大原怜)
 * Tateishi Riho (立石梨穂)
 * Sakamoto Yuuri (坂本優李)
 * Ogata Narumi (緒方成美)
 * Yamauchi Sayuri (山内小百合)
 * Nakazawa Yuki (中沢友希)

8th Generation

 * Yoshida Arina (吉田有那)
 * Ogawa Kanade (尾河花奏)

9th Generation

 * Oshima Akane (大島愛奏)
 * Asada Hikaru (浅田ひかる)
 * Monji Kotoko (門司詩子)
 * Hayashi Yuuka (林優花)
 * Shimada Saki (嶋田早希)
 * Tanaka Momoka (田中李佳)
 * Yoshimura Tamami (吉村珠実)
 * Ryuu Yuina (龍ゆいな)
 * Aikawa Reika (藍川れいか)
 * Kojima Nao (小嶋菜生)
 * Hashimoto Nana (橋本菜々)

10th Generation

 * Kawasaki Miho (川崎美帆)
 * Shinoyama Sera (篠山せら)
 * Watanabe Kokoro (渡辺心)
 * Nakamura Koyuri (中村胡百合)
 * Yamamoto Yuri (山本侑里)

11th Generation

 * Ito Nagisa (伊藤凪紗)
 * Sato Mai (佐藤真好)
 * Naruse Miu (成瀬みう)
 * Togami Momoka (砥上百香)
 * Numa Saeri (沼葵里)

12th Generation

 * Sato Kanon (佐藤花音)
 * Miura Yukino (三浦ゆきの)

Albums

 * [2014.12.17] HR

Singles

 * [2012.05.02] Kimi ni SPARK (キミにSPARK)
 * [2013.01.23] Barikata (バリカタ)
 * [2013.09.11] Zenryoku Jump! (全力ジャンプ！)
 * [2014.01.15] Evolution da (エボリューションだ)
 * [2014.09.24] Kibou no Tsubomi (希望の蕾)
 * [2015.06.24] Natsuiro Candy (夏色キャンディ)
 * [2015.11.04] Toy Soldier (トイ・ソルジャー)
 * [2016.06.22] Mattou yo! (待っとうよ！)
 * [2017.03.01] Nippon Hakata Ka Dai Sakusen (日本ハカタ化大作戦)