On Friday (Dec. 13), K-pop girl group LOONA made their long-awaited return with the release of “365."

The sweet, wintertime pop ballad features dramatic instrumentals and soaring synth elements, and is full of heartfelt meaning from the members of the act, who sing about how they appreciate the fans who wait for them, as they promise to shine for “365” days, or the span of a year.

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“365” is their first song released following February’s “Butterfly,” and hints to more music to come for LOONA, with the group releasing a series of teaser videos shortly after its arrival last week.