It helps that most songs throughout history are about roughly the same things:
the level of partying and getting lit that will happen tonight will be greater than it ever has been before
a hot girl was dancing and it blew all of our minds
There was a guy that did so much crazy stuff and boy was he a guy
I met a fucked up guy who was dead or a demon or something
I went to a fucked up place that was haunted or something
my lover's butt is just the best
we're drinking SO much alcohol
I miss my lover, who is not with me right now, so much and I'm sitting here thinking of holding them but I can't and it's making me SO sad
You broke my heart and I hate you now 
I can't wait to get back to the land that is my home
There was a hot girl one time and trust me, she was really something
What if [completely nonsensical scenario]