(Dream Tea Entertainment)

K-pop girl group Girl’s Day unveiled new hair colors in the jacket image for its upcoming single “Hello Bubble” -- an eponymous title with its collaborator and hair care brand Mise-en-scene’s hair dye products.

A day prior to the song release slated for Tuesday, the group’s label Dream Tea Entertainment introduced the jacket image as a teaser to the song.

The four members -- Hyeri, Minah, Yura, and Sojin -- flaunt brightly dyed blonde, brunette, ginger, and burgundy hair.

A representative from Dream Tea Entertainment said that the “music, fashion, and the choreography will be dealt in a fresh and bubbly way,” explaining the concept of this single album project would display the unique charms of each member.

“Hello Bubble” will be released at noon on Tuesday, along with its music video.

By Lim Jeong-yeo (kaylalim@heraldcorp.com)