Mark Ronson and Bruno Mars' 'Uptown Funk' is a masterclass in modern-retro production. Though it sounds effortless, the song took seven months of grueling work and over 80 takes to perfect. Ronson famously became so stressed during the recording process that he fainted in a restaurant. The track pays homage to the 1980s Minneapolis sound and funk groups like The Gap Band and Zapp. Upon release, it became a massive hit, spending 14 weeks at number one in the US and winning the Grammy for Record of the Year. It is one of the few songs to be certified Diamond by the RIAA. The song's success was so dominant that it led to a surge in 'brass-heavy' pop music in the following years. Its high-energy music video, filmed on a 20th Century Fox backlot, has amassed billions of views, making it one of the most successful collaborations in pop history.