Which Bruno Mars song was Billboard's best-performing song of the 2010s?

Billboard’s best-performing song of the 2010s was “Uptown Funk,” credited to Mark Ronson featuring Bruno Mars.

Released in 2014, the track became a defining hit of the decade. It topped the Billboard Hot 100 for 14 consecutive weeks and finished at No. 1 on Billboard’s decade-end Hot 100 chart. That performance made it Bruno Mars’s biggest Billboard-era hit, even though Mark Ronson was the lead credited artist.

The song grew from a collaboration between producer and musician Mark Ronson, Bruno Mars, Philip Lawrence and others. Its retro funk sound drew comparisons to artists such as James Brown, Prince and the Gap Band, while its video and dance-heavy performances helped make it a cultural phenomenon.

A common mix-up is confusing the decade-end ranking with the song’s release date: “Uptown Funk” arrived near the middle of the 2010s, but its chart longevity and huge audience gave it the decade’s strongest overall performance. It is also distinct from Mars’s solo hits such as “Grenade” and “Locked Out of Heaven.”