Songfacts®:

• Spacemen 3 were an English neo- psychedelia rock band comprising Peter 'Sonic Boom' Kember and Jason Pierce. By mid-1990 the pair weren't talking and this was their last single released in January 1991, shortly after the band had broken up.
• The song featured prominently in the 27th season premiere of The Simpsons, "Every Man's Dream." The episode shows Homer Simpson going through a trial separation with wife Marge, and starting a new relationship with a female pharmacist named Candace. Homer and Candace experience a psychedelic trip soundtracked by "Big City."
  
  Kember told The Wall Street Journal that he usually rejects offers to use the group's songs, but that The Simpsons was too good to refuse. "When I saw the script I was psyched," he said. "I couldn't imagine a sweeter use of that track in this context, and particularly in context of a 'trip' scene. [That is] something that's usually for me a high point of 'The Simpsons' oeuvre. I imagine it is what people in bands secretly, or openly, dream of. Animation is so useful for these sort of stretches of reality."