The series revolves around Ichigo Hoshimiya, an aspiring Japanese idol who enrolls into Starlight Academy and partakes in auditions using special Aikatsu cards.
From episodes 26 until 50, the opening theme is "Diamond Happy" (ダイヤモンドハッピー, Daiyamondo Happī) by Waka, Fūri, and Sunao whilst the ending is "Hirari/Hitori/Kirari" (ヒラリ／ヒトリ／キラリ) by Waka, Fūri, Sunao, Remi, Moe, Eri, Yuna, and Risuko.
The ending theme for episode 44 is "Kiss of the Alice Blue" (アリスブルーのキス, Arisu Burū no Kisu) by Rey.
From episodes 51 until 75, the opening theme is "Kira Power" by Waka, Fūri and Sunao whilst the ending theme is "Original Star" (オリジナルスター☆彡, Orijinaru Sutā) by Waka, Fūri, Sunao, Remi, Moe, Eri, Yuna, and Risuko.
From episodes 127 until 152, the opening and ending themes respectively are "Lovely Party Collection" and "Tutu Ballerina" (チュチュ・バレリーナ, Chuchu Barerina) – both performed Mona, Ruka, and Miki.