Kim Jun-han mentioned the royalties from the song "Emergency Room," which he released during his time as the drummer for the band izi.

Appearing on the YouTube channel "Yoo Yeon-seok's Weekend Yeon-seok Play," Kim Jun-han participated in a talk about the movie "Salmokji" with Lee Jong-won and Jang Da-ah. Kim Jun-han revealed that he started playing drums when he joined the band club in high school. He said, "I started playing drums when I joined the band club with my friends in high school," and added that he decided to pursue music seriously in his senior year. Originally from Masan, he also mentioned that he moved to Seoul after graduating high school to focus on music.

During the broadcast, when Yoo Yeon-seok suggested that "Emergency Room" had dropped off the karaoke popularity chart, Kim Jun-han immediately searched the chart rankings. As of the filming date, "Emergency Room" was ranked 5th on the karaoke chart. Kim Jun-han said, "To my knowledge, it has not fallen outside the top 100 in the past 20 years."

Regarding income from karaoke royalties, Kim Jun-han explained, "It adds to my life little by little, like clothes getting wet from a drizzle." When Lee Jong-won asked about the karaoke income, Kim Jun-han replied that royalties continue to come in steadily.

Kim Jun-han debuted as the drummer for izi in 2005, and the band became known to the public through the drama "Delightful Girl Choon-Hyang" OST "Emergency Room." He later transitioned to acting and has appeared in various works.