Netflix 'Kingdom' actress Bae Doona, and 'Goblin' star Gong Yoo both made a celebrity guesting on Lee Joon's radio show and talked about film project, with Gong Yoo responds through sending messages.

On January 5, Tuesday, Bae Doona participated in 'Lee Joon's Young Street,' with Gong Yoo who are both busy with their current projects. Bae Doona is currently doing promotional activities with her upcoming French comedy film, '#IAmHere,' while Gong Yoo is also busy with his Netflix Original series project, 'The Silent Sea.'

Actress Bae Doona initially expressed her desire to be invited on Lee Joon's radio show and thanked him for having her on the program to discuss and promote her film. Moreover, Bae Doona expressed admiration for Lee Joon's profession as a Radio DJ and shared how cool and professional Lee Joon is more in person.

When asked about the most unforgettable role she had ever portrayed, Bae Doona was stunned and shared it's impossible to pick because she has tons of favorite roles. However, Bae Doona admitted she liked roles where she gets to experience and discovers new things.

Moreover, Bae Doona is happy with projects and roles where she gets to take advantage of learning things she had never done before and confessed to becoming attached to it. Every requirement Bae Doona has to learn for the role to be efficiently portrayed is not a burden to her but a challenge that she wants to accomplish to become a better actress herself.

Meanwhile, Gong Yoo jumped in the conversation as Lee Joon mentioned Gong Yoo's 29 messages sent to him and Bae Doona making the pair laugh on set. Gong Yoo sent a message commending how pretty Bae Doona's knit sweater is and how he is taking time off, drinking beer.

Furthermore, Bae Doona shared his first impression of Lee Joon, "My first impression of Lee Joon was that he was so cute. But now he's really cool. He's so professional and cool; he doesn't goof around at all."