Jeon Ji Yoon is a South Korean idol singer. She is a former member of the girl group, 4Minute, formed by Cube Entertainment in 2009. She is also a member in the duo sub-unit group, 2Yoon, with Gayoon, also formed by Cube Entertainment, in 2013. On September 2014, it was revealed that Ji Yoon would make her actress debut with the online drama "Dreaming CEO".
She terminated her contract with Robin K. Entertainment in September 2017.