Fancy was released in April 2019 as the lead single from Twice's seventh extended play Fancy You. The South Korean girl group, formed by JYP Entertainment, moved toward a more mature yet still playful pop sound with the track, and its choreography and music video quickly spread across YouTube and social platforms. Fans clipped the chorus for edits, dance challenges and reaction posts, helping the song remain a staple reference for late 2010s K-pop even years after its chart run.