Ieiri was born in
Kurume and grew up in
Fukuoka. She wanted to be a singer at the age of 13 and came to study under presided over by record producer Yoshihiko Nishio. Her stage name comes from the movie
Léon: The Professional, and also comes from Leo of
Kimba the White Lion because her eyes resemble a lion. In the spring of 2011, she left home and went to Tokyo alone, leaving her parents. features an anime version of the singer (based on Kimba and modeled after the singer) which meets other characters from the
Kimba the White Lion series. She sung the theme song for the Japanese version of
The Secret Life of Pets called "Brand New Tomorrow". ==Discography==