Songfacts®:

• This song finds Sam Fender focusing on political conflicts across the world in 2019. The lyrics reference bombings in Gaza and rising tensions in global politics.
  
  In a press release, Fender explained the song title was inspired by a "newly developed Russian missile that travels at something like nine times the speed of sound."
• The track doubles as an unorthodox love song in which the singer, convinced the world is on its last legs, vows to spend his remaining time on Earth with his girl.
  
  But I believe in what I'm feeling, and I'm falling for you
  This world is gonna end, but 'til then, I'll give you everything I have
  
  Fender explained "that no matter what happens, these two people are gonna have a f--king good time regardless of the tyrants that run their world, and regardless of the imminent doom from these 'Hypersonic Missiles.'"
• The song's music video, which was filmed in Los Angeles, finds Fender reuniting with director Vincent Haycock, who previously created the visuals for "Dead Boys." The clip sees the singer exploring how a group of different people would spend their last 24 hours on this planet.
  
  "It's this idea of a bunch of kids on their last day on Earth and it asks the question of what would you do? It's as simple as that," Fender told NME.
  
  "You've got chaos, romance and so many different characters to make it beautiful and hilarious," he continued. "There's loads going on and then there's just me running around neighborhoods too. That's probably what I'd be doing on my last day, I'd just be running around and going absolutely mad."
• This was voted Hottest Record of the Year in 2019 by the listeners of Annie Mac's BBC Radio 1 show.