First Name: Hae Joon
Family Name: Lee
Native name: 이해준
Also Known as: 루빈;Lee Ru Bin;Ru Bin
Nationality: South Korean
Gender: Male
Born: August 16, 1995

Lee Hae Joon, better known by his stage name Rubin, is a Liveworks Company trainee and a former Woollim Entertainment trainee. He was a part of White Unit in Boys24. He is known as one of the winners of survival program MIXNINE.