Ai Kago (加護 亜依, Kago Ai), born February 7, 1988 in Yamatotokada, Nara, Japan, is a Japanese singer, actress, author, and former Guinness World Record holder. Kago began her career at the age of 12 as a member of the idol group Morning Musume. In the same year, she became a founding member of Minimoni. In 2004, she graduated from both the aforementioned groups and formed W with Nozomi Tsuji, but she was withdrawn from the group in 2007. In 2008, she embarked on a career in film and returned to music, releasing a jazz album in 2010 and becoming part of the group Girls Beat!! in 2013.