"Uptown Funk" is a song by British record producer Mark Ronson from his fourth studio album, Uptown Special (2015), featuring American singer and songwriter Bruno Mars. It was released as the album's lead single on November 10, 2014 via download in several countries. "Uptown Funk" was written by Ronson, Mars, Jeff Bhasker, and Philip Lawrence, and produced by the former three; its composition began during a freestyle studio session when they worked on a jam Mars and his band played on tour. Copyright controversies arose after the song's release resulting in multiple lawsuits and amendments to its songwriting credits.
Mark Daniel Ronson (born 4 September 1975) is a British-American DJ, songwriter, record producer, and record executive. He is best known for his collaborations with artists such as Duran Duran, Amy Winehouse, Adele, Lady Gaga, Lily Allen, Robbie Williams, Miley Cyrus, Queens of the Stone Age, and Bruno Mars. He has received seven Grammy Awards, including Producer of the Year for Winehouse's album Back to Black and two for Record of the Year singles "Rehab" and "Uptown Funk". He received an Academy Award, a Golden Globe Award and a Grammy Award for co-writing the song "Shallow" (performed by Lady Gaga and Bradley Cooper) for the film A Star Is Born (2018).
According to Billboard, downloads of 'Uptown Funk' hit sales of 5.5 million units in the US alone, while Ronson's album scanned 95,000 units, according to Nielsen Music. This amounts to about $510,000 in US mechanical publishing royalties (at $0.091 per song).