For those that are interested in seeing artists conjure up hit songs, check out the documentary "Billie Eilish: The World's A Little Blurry". There are some scenes showing Billie and her brother sitting on a bed in their parents' house coming up with lyrics and melodies for songs that would go on to sell millions, win grammys and totally change their lives.
I'm a huge beatles fan, and while Get Back shows sparks of creativity - for the most part it, it shows a few childish rich dudes high as all hell dicking around in front of cameras in a super-weird situation that they put themselves in trying to document themselves writing an album.
The World's A Little Blurry on the other hand shows two siblings battling through some tough shit and turning it into gold on a shoestring recording budget.