Two songs that deftly blend country and hip-hop influences reign as the longest-leading No. 1s on the Billboard Hot 100 chart over the first 25 years of the 21st century – and all-time: Lil Nas X's "Old Town Road,

This chart-topping song (on multiple formats) spent 13 weeks at No. 1 on both the Mainstream Rock + Alternative Airplay charts.

Billboard reveals the Top Hot 100 Songs of the 21st Century, and we're sharing the top three that dominated the Hot 100 from January 1, 2000, through December 28, 2024. What's your favorite song of all time?