B1A4 participated in the part one of the soundtrack.
The lead track of the first part of the soundtrack is “Hey Girl,” written by Jihoon and composed by One Shot’s Park Sung Ho and Oh Chang Hoon.
B1A4, who are currently popular in both Korea and Japan, perfectly sang the song in their own style, even increasing interest in the other songs of the soundtrack.
The Thousandth Man is a fantasy sitcom about a legendary fox with nine tails. Many talented musicians participated in the making of the soundtrack.
B1A4′s “Hey Girl” will be released on August 14 on all online music sites.