Blue Moon (BtoB song)

"Blue Moon" is a song performed by the South Korean boy group BtoB. It was released on February 21, 2018, as a special track on their tenth mini-album, Feel'eM.

"Blue Moon" stands out within BtoB's discography for its sensual and mature concept, a departure from some of their more ballad-focused or playful releases. The song explores themes of longing, desire, and the allure of a hidden or forbidden love. The lyrics use the "blue moon," a rare lunar event, as a metaphor for something unique and unattainable.

The song features a smooth, R&B-influenced instrumental with a focus on vocal harmonies and ad-libs, showcasing the group's vocal capabilities. It was co-written and co-composed by members Im Hyunsik and Lee Minhyuk, further highlighting their involvement in the group's musical direction.

While not promoted as a title track, "Blue Moon" has gained significant popularity among fans and is often considered a B-side favorite due to its distinctive sound and captivating lyrics. It is often performed live during concerts and special events.