The relentlessly upbeat and easy-to-sing tune—“Drench yourself in words unspoken, live your life with arms wide open”—just hit the Top 20 in the U.K. singles charts for the first time in 19 years. Versions of “Unwritten” have played on nearly 260,000 TikTok and Instagram posts to date, according to Hootsuite. The song also broke into the U.S. Spotify 200 daily chart.