2015: Uptown Funk

Artist: Mark Ronson featuring Bruno Mars

Though many remember “Uptown Funk” as a Bruno Mars megahit, it was a song by the producer Mark Ronson that featured Mars. Whatever the case, the throwback beat and pop production made “Uptown Funk” a sensation—it held the top spot for 14 weeks, and the video has been viewed on YouTube 3.48 billion times. Ronson has worked with Lady Gaga, Amy Winehouse, Adele, and Miley Cyrus, among many others. Over his career, he's won Grammys for both “Uptown Funk” and Winehouse's “Rehab.” This year, he won an Oscar and a Grammy for “Shallow,” his collaboration with Lady Gaga.