Girl group WJSN's unit Chocome will simultaneously release the title track and music video of their debut single album 'Hmph!' through various music sites on October 7th at 6 pm. Those who have shown a faint fantasy of love with WJSN overturn the existing image and transform into a retro girl with a humorous and refreshing charm.

The title 'Hmph!' is a vintage disco pop genre music full of the four members' wacky and lively charms. It is an impressive song with a song that cutely expresses his heart toward a person who does not know his or her heart, and RBW divisions such as hit song makers Kim Do-hoon and Seo Yong-bae took over the production of the song, adding to the addiction of the song.