The most successful song collaborations of all-time: 'Old Town Road' approaching No. 1

24/7 Tempo identified the most popular collaborations ever based on the longest runs atop Billboard’s Hot 100 pop music chart.

https://www.usatoday.com/story/entertainment/music/2019/07/17/old-town-road-billboard-hot-100-longest-run-no-1/39693007/