Lee Jang Woo and IU attended the press conference for their upcoming KBS 2TV drama 'Pretty Man' on November 18 and discussed their relationship.

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Lee Jang Woo shared, "When we first filmed, there was nothing to say, so we talked about this and that until I remembered reading an article about IU's apple diet so asked her about the method... I tried it once, but it was really hard so I kept whining about it."

He continued, "Every day, I ate only one apple and sweet potato.  I tried it for three days and thought I was going to die," and laughed.

You can see more of these two actors' chemistry when the drama premieres in two days on November 20 at 10PM KST!