As Billboard celebrates the top-performing artists, albums and songs of the first 25 years of the century since 2000, browse below the songs with the most weeks at No. 1 on the Hot 100 in that span.

Here's who produced the most No. 1s on Hot R&B/Hip-Hop Songs in the first quarter of the century, as part of Billboard’s yearlong retrospective.

Billboard has released a list of the Top 100 Songs of the 21st Century. If you’re having a busy day don’t worry, it will not take you very long to read about the rock artists featured on their ...

Bringing a classical jazz sound to the mainstream, Laufey’s beautiful vocals are the cherry on top of the elegant fusion, ...

Billboard has released a list of the Top 100 Songs of the 21st Century. If you're having a busy day don't worry, it will not take you very long to read about the rock artists featured on their ...