On Aug. 4 1958, Billboard launched the Hot 100, forever changing pop music -- or at least how it's measured. Sixty years later, the chart remains the gold-standard ranking of America's top songs each week. And while what goes into a hit has changed (bye, bye jukebox play; hello, streaming!), attaining a spot on the list -- or better yet, a coveted No. 1 -- i s still the benchmark to which artists explore, from Ricky Nelson on the first to Drake on the latest. Which brings us to the hottest-of-the-hot list the 100 most massive smashes over the charts six decades.
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