What does a “No. 1” or “Number one” song mean?
The terms “No. 1” and “Number one” are nouns, which is used to reference a song that goes number one on the Billboard Hot 100 charts or an album that goes number one on the Billboard 200 charts.
No. 1 means a number one song on the Billboard Hot 100 chart or a number one album on the Billboard 200 chart.
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