Momoiro Clover is a Japanese idol group made up of 5 selected members from Stardust Promotion Agency's section 3 (3B Junior unit). They are also referred to as Momoclo (ももクロ), Shuumatsu Heroine (週末ヒロイン, lit. "Weekend Heroine")

Members:
Reni Takagi - represents the color purple
Kanako Momota - represents the color red (leader)
Shiori Tamai - represents the color yellow
Ayaka Sasaki - represents the color pink

ex-members:
Akari Hayami - represents the color blue (April 11, 2011)
Momoka Ariyasu - represents the color green (January 21, 2018)

Kanako Momota was appointed the new leader of the group after Reni Tagaki stepped down because of leadership issues.

The group name was changed to Momoiro Clover Z after Akari Hayami (Blue) graduated in 2011.

(Source: Wikipedia)

Momoclo-chanz is a project aims for kids.
@momoclo_chanz