Looking back at the biggest hit singles of every year, dating to the Hot 100's 1958 launch. By Xander Zellner Billboard has been publishing weekly rankings in one form or another for over a century.

Here's a look at 25 chart feats that didn't happen until the 21st century, including achievements by Taylor Swift, BTS, ...

Billboard reveals the Top Hot 100 Songs of the 21st Century, and we're sharing the top three that dominated the Hot 100 from ...

The week’s most popular current songs across all genres, ranked by streaming activity, radio airplay audience impressions, and sales data.

Two songs that deftly blend country and hip-hop influences reign as the longest-leading No. 1s on the Billboard Hot 100 chart ...

Plus, check out Billboard's Top Hot 100 Songs of the 21st Century chart, Top Artists of the 21st Century chart and Top ...