The "I can see the world spinnin' round" part you hear in the beginning. It plays throughout the song

When I google the lyrics it pulls up a Beatles song. I only skimmed the song but it doesn't sound anything like the bit in the song

https://www.youtube.com/watch?v=fjWC_NFABxE

It is the song by the Beatles, just processed/edited to sound different

it's probably one of the many covers of the beatles song. according to this list, it has over 100 covers released.

i would start going through the female ones if i were you.

Ask the producer, it's not like he or Shayna are unreachable.