Ayaka Sasaki (佐々木 彩夏, Sasaki Ayaka, born June 11, 1996 in Kanagawa Prefecture) is a Japanese idol singer. She is known as a member of the female musical group Momoiro Clover Z. Her Momoiro Clover Z signature color is Pink. She is the youngest member of the group. Her self-introduction is: "I am a playful and little bit sexy idol of Momoclo Ayaka Sasaki a.k.a. Ārin!".