[1][2][3][4] Billboard described "Butterfly" as having a "bass-infused, synthy melody" with a "sense of bright airiness and groovy beat drops."
It also highlighted the focus on the diverse vocals tones that moved between "autotuned wails, breathy verses and coy raps".
[6] The music video for the song was shot in France, Hong Kong, China, the United States, Iceland and South Korea.
Loona's visual director Digipedi revealed that they toured 5 countries across 3 continents for the "Butterfly effects" that captures the freedom and courage of girls worldwide.
[5] The video featured scenes of women of different ethnicities, religions, and nationalities from all around the world, interspersed with clips of the girl group dancing in a serene, lilac-hued amphitheater.