Aikatsu! - Season 2 Episode 36 My Dear Idol!
Overview: Orihime and Tiara announce the beginning of the Aikatsu8 Elections, in which fans will show their support for their favorite idols, and the eight most popular idols will form a special unit known as Aikatsu8. They declare that the Elections are not limited to idols from Starlight and DreAca, so Mizuki and Mikuru from WM are eligible to participate.