LIGHTSUM continues to prepare for its first comeback and released new teaser photos. The girl group will be making a comeback with their upcoming 2nd single album, 'Light a Wish.'

Coming up next month on October 13 at 6 PM KST, LIGHTSUM's 2nd single album contains a total of 3 brand new tracks. The group's comeback title track is "Vivace," a term in classical music which describes a fast and lively tempo. The album also includes b-sidetracks "You, Jam" and "Popcorn."

On October 1 at midnight KST, the girl group released new individual and group concept photos to prepare for their comeback. Stay tuned for even more details on LIGHTSUM's first official comeback since its debut, and check out the teaser photos above and below.