According to various media outlets, Jung Hyung Don and Defconn have been preparing for a new song and a digital single, set for release September 22. The two however do not have plans for any broadcast promotions yet. 

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Defconn also shared the news on his Instagram, writing, "We will be greeting you guys as Hyung Don and Dae Joon for the first time in awhile. It's a single, and the title of the song is 'Decision'. I apologize in advance because the song is not humorous. It will feature IU, who came to us right away despite her busy schedules. Thanks to her the song is very beautiful. It'll be released at midnight on September 22. Thank you very much."

The song will also mark Jung Hyung Don's first release following his official return to broadcasts. Stay tuned for Hyung Don and Dae Joon's "Decision" feat. IU, coming soon!