IU stepped up to interview rookie group HIGH4 for 1theK's 'I'M: Introducing Myself' series!

SEE ALSO: HIGH4 set out on their official debut with the help of IU in 'Not Spring, Love, or Cherry Blossoms' MV

IU featured in HIGH4's debut track "Not Spring, Love, or Cherry Blossoms" and wrote the lyrics to the song as well. In the 'I'M' video, HIGH4 reveal the meaning of their group's name as well as a little bit about each of the members.

Check out more in the video above!