AIKATSU☆STARS is a Japanese music artist and vocal group formed in connection with the Data Carddass arcade game and anime television series Aikatsu Stars!, which began airing in 2016. The group served as the primary musical act for the franchise, performing theme songs and insert songs that appear within the episodes. The ensemble functions as a flexible collective, with individual tracks often credited to specific subsets of its members, reflecting the characters they voice in the anime.

The group's formation involved numerous performers who sing as their respective characters. Documented members include 遠藤瑠香 (Ruka Endo), 巴山萌菜 (Moana Tomiyama), 未来みき (Miki Mirai), 天音みほ (Miho Amane), 松岡ななせ (Nanase Matsuoka), 星咲花那 (Seina Hoshizaki), 藤城リエ (Rie Fujishiro), 堀越せな (Sena Horikoshi), and 相沢梨紗 (Risa Aizawa). The group began its activities in 2014 with the release of the double A-side single Du-Du-Wa DO IT!! / Good morning my dream in October of that year. The track Du-Du-Wa DO IT!!, as cited by the user, is performed by るか・もな・みき from AIKATSU☆STARS!, with lyrics by こだまさおり and composition and arrangement by 南田健吾 of onetrap.

Across its discography, the group has contributed numerous songs to the Aikatsu Stars! media mix. Notable singles include Beautiful Song (2015), Lovely Party Collection / チュチュ・バレリーナ (2015), START DASH SENSATION / lucky train! (2015), スタートライン！ / episode Solo (2016), STARDOM! / Bon Bon Voyage! (2017), and MUSIC of DREAM!!! / 森のひかりのピルエット (2017). The group also released extended plays such as Wonderful Tour (2016) and Fantastic Ocean (2017), along with the single Endless Sky in December 2017, which contains tracks including The only sun light, 裸足のルネサンス, ネバギバ☆, and Bon Bon Voyage! in an alternate version.

Compilation albums serve as a primary format for the group's catalog. The album Lovely Party!! was released on March 16, 2016, and features a comprehensive selection of early tracks, including Du-Du-Wa DO IT!!, Blooming♡Blooming performed by るか, and collaborations with the related group STAR☆ANIS. Two best albums were released simultaneously on July 25, 2018: BRILLIANT☆STARS, which compiles songs from the first year of the anime, and STARS☆SHOWER, which focuses on the second year story arc titled 星のツバサ. BRILLIANT☆STARS includes songs such as アイカツ☆ステップ！ performed by せな・りえ, Miracle Force Magic sung by ななせ, and スタージェット！ performed by せな・りえ・みき・かな. STARS☆SHOWER features tracks including MUSIC of DREAM!!!, STARDOM!, and 森のひかりのピルエット.

Recurring collaborations with music production units are a defining characteristic of the group's sound. The composers and arrangers from MONACA, including 田中秀和, 石濱翔, 岡部啓一, 広川恵一, and 帆足圭吾, contributed to numerous tracks. The production team onetrap, with arrangers like 南田健吾 and 成瀬裕介, also worked extensively on the group's music. Other frequent contributors include composer and arranger connie, lyricist こだまさおり, and the production team agehasprings. The group also has documented collaborations with STAR☆ANIS, the vocal group for the preceding Aikatsu! series, on tracks such as はろー! Winter Love♪ 〜Christmas Ver.〜 and 禁断 Hide & Seek.

The musical identity of AIKATSU☆STARS! is rooted in pop music tailored to the energetic and aspirational themes of the Aikatsu! franchise. The group's songs range from upbeat, driving pop anthems like STARDOM! and MUSIC of DREAM!!! to character-driven solo pieces that explore a variety of genres, including the Latin-influenced ラブリー☆ボム performed by みほ and the waltz-like チュチュ・バレリーナ performed by もな・ななせ. The flexible attribution of songs to specific singers, such as るか, もな, みき, みほ, ななせ, and かな, allows the music to directly represent the fictional idols within the anime's narrative.

In the broader context of anime music, AIKATSU☆STARS! holds significance as the successor vocal group to STAR☆ANIS, continuing the tradition of having real-life performers sing as the characters in the Aikatsu! multimedia franchise. The group remained active from 2014 until its final releases in 2018, with the best albums and the complete CD box marking the conclusion of the Aikatsu Stars! era before the franchise continued with subsequent series.