On July 13th, A teaser video released on M.net's official YouTube channel.
In the video, Wanna One's member Kang Daniel explained that Wanna One's debut title song will be chosen by the fans.
He also explained about the voting process.

After watching the videos, fans can vote to a preferred song on the official Wanna One website.
The voting will start on the same day until the 27th.

(SBS Star)