During the '2015 Melon Music Awards', LE revealed, "We're working hard for our November 18th comeback." Solji added, "We've included an old feeling, but it won't be the type of old you're thinking about."
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The girls also all dyed their hair as a 'comeback spoiler', so we'll get to see if the girls keep this hair for the comeback or if their hair color is just a hint to their upcoming release.
In any case, stay tuned for the girls' comeback on the 18th!