Good Day is a music project where G-Dragon collaborates with people from various fields to create the song of the year. As the producer, G-Dragon will take the lead in crafting music, turning different individuals' stories into songs, all while showcasing the creative process through a reality variety format.

Confirmed guests include top actors Hwang Jung-min and Kim Go-eun, who joined the show after resonating with its concept. Additionally, the famous "88-line" stars—Kim Soo-hyun, Jung Hae-in, Im Si-wan, Kwanghee, and Lee Soo-hyuk—are set to appear, heightening anticipation. Other big names include SEVENTEEN's unit BSS (Seungkwan, DK, Hoshi), TV personalities Hong Jin-kyung and Kian84, as well as celebrity chef Ahn Sung-jae, all adding to the excitement for the show's premiere.