Songfacts®:

• This was originally an instrumental titled "Koala," which was released as a digital download on July 16, 2014 by Oliver Heldens in the Netherlands. The song peaked #42 in the producer's native country and also reached the Top 50 in Belgium.
• Heldens released a vocal version of the song titled "Last All Night (Koala)" as a digital download on December 7, 2014. KStewart is the singer; in case you're wondering she isn't the Twilight actress, but a rising artist from London who is known to her family as Kate.
• This was Heldens' second hit in the UK, having shifted his animal of choice from a Gecko to the Koala bear. Here are some koala fun facts:
  
  The Koala bear is not actually a bear, but a marsupial, related to the kangaroo and the wombat
  
  Koalas sleep for up to 18 hours per day and spend about three of their five active hours eating.
  
  Koalas typically inhabit open Eucalyptus woodlands, and the leaves of these trees make up most of their diet.
  
  Koalas do not drink. They get all the moisture they need from the Eucalyptus leaves that they ingest.
  
  The fingerprints of koala bears are virtually indistinguishable from those of humans.