GEM

 (Girls' Entertainment Mixture) was a Japanese idol group under the avex sub-label IDOL Street. The theme of the group is Gemstones. As of 2017, the groups are split into sub-units known as LUNA and SOL. The group was formed in January 2013 and disbanded March 25, 2018.

Final Line up

 * LUNA
 * Kanazawa Yuuki (金澤有希;Leader)
 * Ito Chisami (伊藤千咲美)
 * Morioka Yuu (森岡悠)
 * Minamiguchi Nana (南口奈々)
 * Nishida Hirari (西田ひらり)
 * SOL
 * Kumashiro Jurin (熊代珠琳)
 * Oguri Kako (小栗かこ)
 * Takeda Maya (武田舞彩)
 * Hirano Sara (平野沙羅)

Former Members

 * Ozeki Nagi (Graduated April 7, 2013)
 * Sakamoto Hazuki (Now in Wa-Suta)
 * Asakawa Nana (Now in SUPER☆GiRLS)
 * Uchimura Risa (Now in SUPER☆GiRLS)
 * Noguchi Monami (野口みなみ) (Left in July 2016)
 * Murakami Rana (村上来渚; indefinte Hiatus)
 * Iyama Maho (伊山摩穂; indefinte Hiatus)

Albums

 * [2016.03.23] Girls Entertainment Mixture

Singles

 * [2013.07.26] Speed up / Do it Do it
 * [2014.01.01] We're GEM!
 * [2014.06.04] Do You Believe?
 * [2014.12.17] Star Shine Story
 * [2015.09.30] Baby, Love me!
 * [2016.03.23] Fine! ~fly for the future~
 * [2016.07.20] Spotlight
 * [2017.02.15] Sugar Baby

Music Cards

 * [2015.06.28] No Girls No Fun
 * [2015.06.28] You You You
 * [2015.06.28] Delightful Days
 * [2017.08.16] Kimi to Boku. / Saikyou Summer!!

DVDs

 * [2015.11.25] GEM Live Mixture 2015 ~2nd Anniversary~