AIKATSU☆STARS! is a new idol group who are the featured performers for songs in relation to the Data Carddass Aikatsu! game starting from the 2015 series, as well as the third season of the anime. They sometimes collaborate on songs with members from their sister group, STAR☆ANIS.
Like STAR☆ANIS, the members of AIKATSU☆STARS! provide the singing voice of at least one main character in the Aikatsu! universe, and are credited only by their given names written in hiragana.
Ruka (るか) – Ruka Endou (遠藤 瑠香) as Akari Oozora
Mona (もな) – Mona Tomoyama (巴山 萌菜) as Sumire Hikami
Miki (みき) – Miki Mirai (未来 みき) as Hinaki Shinjou
Miho (みほ) – Miho Amane (天音 みほ) as Juri Kurebayashi and Nono Daichi
Nanase (ななせ) – Nanase Matsuoka (松岡 ななせ) as Rin Kurosawa and Lisa Shirakaba
Kana (かな) – Kana Hoshizaki (星咲 花那) as Madoka Amahane and Nina Dojima
(Source: Aikatsu Wikia)
Twitter: @aikatsustars