Iridescent is an idol group who are the featured performers for songs in relation to the Elemental Pretty Cure series. The members of Iridescent provide the speaking and singing voice of at least one main character in the Pretty Cure universe, and are credited only by their given names written in hiragana.
- Yuuki Aoi (悠木碧 Yūki Aoi) --> Aoi (あお Aoi) as Kazesawa Aya
- Morohoshi Sumire (諸星すみれ Morohoshi Sumire) --> Sumire (すみれ Sumire) as Kiyomizu Takara
- Tadokoro Azusa (田所あずさ Tadokoro Azusa) --> Azusa (あずさ Azusa) as Hanazawa Mayumi
- Aoi is the only member to have less than three characters in her name.
- Iridescent is the first and so far only seiyuu group in the Pretty Cure universe.