Mark Ronson's "Uptown Funk!," featuring Bruno Mars, hits hallowed ground atop the Billboard Hot 100: It reigns for a 10th week, joining the exclusive club of leaders that have reigned for double-digit weeks.
As the collab dominates again, Ed Sheeran's "Thinking Out Loud" spends an eighth week in the runner-up spot, but as an impressive consolation prize, it makes its own headlines on Billboard's pop and adult radio airplay charts.
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