The year in Billboard chart feats, by the numbers: From 1 to 4.002 million

On the Billboard Hot 100, Mariah Carey's "All I Want for Christmas Is You" claimed the record for the most weeks at No. 1: 20 ...
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Here Are the Billboard Hot 100’s Top Songs of 2005: Nos. 100 to 1

Fifteen years into her Billboard chart career, Mariah Carey was still achieving firsts. In 2005, the superstar’s smash “We Belong Together” spent 14 weeks at No. 1 on the Billboard Hot 100 songs chart ...