Lee Ji-eun, also known by her stage name IU (아이유), is a South Korean singer-songwriter and actress. She signed with LOEN Entertainment in 2007 as a trainee and debuted as a singer at the age of fifteen with Lost and Found (2008), her first extended play (EP). Although her follow-up albums, Growing Up and IU...IM, brought mainstream success, it was only after the release of "Good Day", the lead single from her 2010 album Real, that she achieved national stardom. "Good Day" went on to spend five consecutive weeks at the top of South Korea's Gaon Digital Chart, and in 2019, it was ranked number one on Billboard's "100 Greatest K-Pop Songs of the 2010s" list.

The Greatest Love is a 2011 South Korean romantic comedy television series starring Cha Seung-won, Gong Hyo-jin, Yoon Kye-sang and Yoo In-na. Telling a story about true love in the fake world of entertainment, it aired on MBC from May 4 to June 23, 2011, on Wednesdays and Thursdays at 21:55 (KST) for 16 episodes.