Billlie is returning with a new pre-release track "Trampoline."
On October 10 at midnight KST, the group released the second music video teaser where they picked up the story from where they left off last time. The girls each jump on the trampoline and show glimpses of the upcoming music video.
Meanwhile, the full 5th mini album will be released on October 16 at 6 PM KST while the pre-release track will be out October 11.
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