"365" is a song by South Korean girl group Loona.

The song was written by Hwang Yubin and was produced and arranged by Johan Gustafsson, Realmeee, and Hayley Aitken.

[1]"365" is a sweet piano-led, wintertime pop and R&B ballad that features dramatic instrumentals and soaring synth elements.

Lyrically, the song is full of heartfelt meaning from the group, as they 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.

A stripped-back music video for the song was released on group's official YouTube channel, featuring the members getting some down time in an art studio with each working on a painting.