Lee Ha Yi (Hangul: 이하이, born September 23, 1996), also known by her stage name Lee Hi, is a South Korean singer. She is known as the runner-up of SBS's K-pop Star Season 1. Her debut single "1.2.3.4", was released on October 28, 2012 and reached #1 with the first-week sales of 667,549 downloads. She's often called Monster Rookie because she has won many awards despite of her young age and little experience.

Her first full-length album First Love was released in two parts. Part 1 was released on On March 7, 2013 and Part 2 was released on March 28, 2013.

Lee Ha Yi was born on September 23, 1996, and is from Bucheon. She attended Sukchun Elementary School and Sangil Middle School. She is currently attending the School of Performing Arts in Seoul.