Sasaki Rikako (佐々木莉佳子) is a Japanese pop singer under Hello! Project as a third generation member of ANGERME. She first joined Hello! Project in March 2013 as a member of Hello Pro Kenshuusei, being introduced as a member during the March 2013 recital concert. Prior to joining Hello! Project, she was a member of the local idol group SCK GIRLS. She graduated from SCK GIRLS on March 31, 2013.