Hearts2Hearts is a South Korean girl group formed by SM Entertainment, debuting in 2025, and STYLE arrived as one of their early releases that same year. The track helped define their fresh, youthful image after their debut single The Chase. Short excerpts began circulating among K-pop fans on TikTok and other short video platforms, where catchy hooks are often clipped for edits and dance posts. Its continued use comes from that recognisable group name, the H2H fandom shorthand, and a chorus style that listeners can identify immediately.