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Chanyeol guested on 'Lee Kuk Ju's Young Street' back in April and Chanyeol showed great interest in the theme song which played in the middle of the broadcast. After listening to the theme song, he claimed, "These days I'm studying [music] composition and I want to try making a logo song sometime soon," expressing his wish to prove his skills in song composition. DJ Lee Kuk Ju, who could see the singer's enthusiasm told him, "Then make our theme song," much to Chanyeol's delight. He promised her, "I will make it soon and present it to you." 

Since then, Chanyeol has been working diligently at delivering the promised theme song, uploading short clips here and there of him playing the songs he has written. As this is his first attempt at songwriting, anticipation is ever higher for the final product which will be revealed on July 15.