Kei Inoo is a Japanese idol, singer, actor, and member of Hey! Say! JUMP. He is under the management of Johnny & Associates. He was born in Saitama Prefecture.
On September 23, 2001, he entered Johnny & Associates as a trainee. He, later, became a member of the Johnny's Jr. group, J.J. Express. In 2007, he debuted as a member of Hey! Say! JUMP. He graduated from Meiji University with a degree in architecture in 2013. He plays the keyboard during the group's live shows.