For the extended play, Momoland worked with a variety of producers including Duble Sidekick, Tenzo & Tasco, Jake K, Yokan and Full8loom.

Welcome to Momoland consists of six tracks including the group's debut single "Jjan!

To promote the extended play, the group performed on several South Korean music show programs, such as M Countdown and Inkigayo.

Created by Duble Kick Entertainment, which a group of seven members were selected from ten trainees.

Welcome to Momoland was released on November 10, 2016 by Duble Kick Entertainment and distributed by Kakao M as the group's debut extended play.

The accompanying music video for the song was uploaded onto 1theK's YouTube channel simultaneously with the single's release.

[14] Bae Yoon Jung of Yama & Hot Chicks served as the choreographer of the video.

[18] In South Korea, Welcome to Momoland debuted and peaked at number twenty-eight on the Gaon Album Chart for the week of November 12, 2016.

[19] It was the fifty-third best-selling album for the month November 2016 with 1,915 physical copies sold.