Apt comes from APT., the 2024 pop single by Rosé and Bruno Mars built around a Korean apartment drinking game chant. The song became a global hit and a huge TikTok trend, with its simple repetitive hook remixed into sped up, slowed and cute versions. This higher pitched take leans into the playful side of the chant rather than the original cool pop delivery. Fans keep using it for light edits because the rhythm is instantly familiar, even when the visuals are completely new or unrelated to the original video.