MAMAMOO Moonbyul released the pre-released song "WEIRD DAY."

Moonbyul unveiled the pre-released song "WEIRD DAY" of her second mini album "DARK SIDE OF THE MOON" on various music sites on Feb. 4, opening the gun for her full-fledged solo comeback.

The pre-released song "WEIRD DAY" is a medium-tempo song based on the bossa nova guitar and vintage cins, which will present hip-hop rhythms from the middle of the second verse inverted charm.

Moonbyul, in particular, is expected to work with PUNCH for the first time, raising expectations even more as it plans to use emotional synergies.

As such, MOONBYUL will launch her solo career on Feb. 14 by releasing her second mini album "DARK SIDE OF THE MOON," starting with the pre-release song "WEIRD DAY."

Since she received much love for her "HIP" performance, distinctive low-pitched vocals, and excellent rap-making, she plans to captivate risers with different colors and sensibilities from her group activities.

The pre-released song "WEIRD DAY," accompanied by MOONBYUL and PUNCH, was first released on various music sites at 6 p.m. on Feb. 4.