Longtime collaborators Kendrick Lamar and SZA have notched a new hit on Billboard. Their smooth jam “Luther” has reached No. 1 on the Hot 100. It tallies Lamar’s sixth chart-topper and SZA’s third. Of ...

This Forever No. 1 column looks at Roberta Flack's "The First Time I Ever Saw Your Face," her transcendent first Hot 100 No. 1 hit.