Speed up / Do it Do it

 is the unofficial first single released by GEM. It was released on Idol Street street-sei CD Idol Street street-sei Nationwide Battle 1st Stage on January 21, 2013. The songs were later rerecorded with the official members chosen in June and released as a limited event single.

Tracklist

 * 1) Speed up
 * 2) Do it Do it

Featured Members

 * Kanazawa Yuuki
 * Morioka Yuu
 * Minamiguchi Nana
 * Kumashiro Jurin
 * Murakami Lana
 * Takeda Maya
 * Iyama Maho
 * Ozeki Nagi (Last Single)
 * Asakawa Nana (Last Single)
 * Uchimura Risa (Last Single)
 * Sakamoto Hazuki (Last Single)