"Blue Moon" is a song recorded by South Korean boy group BtoB, for their eleventh extended play, This Is Us (2018), which was released on June 18, 2018 by Cube Entertainment.

In the video released, BtoB was seen in the recording studio discussing their next concept, Eunkwang suggests a stage inspired by a jazz bar.

[1] On June 11, Cube Entertainment released the artwork image of the digital single "Blue Moon (Cinema Ver.)"

The released artwork shows a man and a woman holding hands and dancing under the neon 'Blue Moon', creating an atmosphere like a poster for a musical movie.

[3] Han Soo-jin, writing for IZE magazine praised BtoB for their 10 years existence in the industry and their message of hope to their short-lived colleagues.

Those who seemed to be competing only with vocals made them realize the potential of their 10th year with a challenging aspect that felt catharsis of novelty while saving their organs.

[10] On the 9th episode of Kingdom: Legendary War, the group performed "Blue Moon (Cinema Version)" for the first time with (G)I-dle's Miyeon as a hidden card to help BtoB's No Limit stage.