デビル☆アイドル (Devil☆Idol) is the opening theme song for the television anime series でびどる! (Debidoru!). Composed, arranged, and written by Taketeru Sunamori, the track is performed by the three main voice actresses of the series: Suzuko Mimori (as Aira), Yuka Iguchi (as Shima), and Kana Hanazawa (as Hana), three of the most recognizable names in Japanese voice acting and anime music. Clocking in at a brisk 180 BPM and a short 1:29 in length, the song captures the high-energy, sugar-rush style of modern idol-pop, with a playful "devil" twist befitting the show's premise. The song was added to maimai でらっくす (maimai DX) on September 6, 2019, debuting alongside the very first version of the DX reboot. Its Japanese genre classification is POPS＆アニメ (POPS & ANIME), placing it in the standard category for anime tie-in vocal tracks. Over subsequent version updates, the chart levels have been adjusted upward: the Basic chart rose from 3 to 4, the Expert chart from 9 to 9+, and the Master chart from 11+ through 12 to its current 12+ rating. The Expert chart was designed by シチミヘルツ (Shichimi Hertz), while the Master chart was designed by 某S氏 (Bou S-shi), a charter known for crafting technically demanding upper-level DX patterns.