The song, Under Pressure, which appeared on the Queen album Hot Space, evolved from a jam session the band had with David Bowie at its studio in Montreux, Switzerland, therefore it was credited as co-written by the five musicians. According to Queen bassist John Deacon (as quoted in a French magazine in 1984), the song's primary musical songwriter was Freddie Mercury, though all contributed to the arrangement. There has been some confusion about who created the song's famous bassline. Read more on Last.fm