Legality Question

[night-sky99.livejournal.com]

I hope this is okay and if not, feel free to delete, mods. The rules say "NO BUYING/SELLING/TRADING!!!" but I think this should be okay.


In my last post, here I posted a shirt that my friend and I made (the last image).
The shirt was bought at Michael's and the lyrics are from a Bo Burnham song. My friend and I have been musing over the idea of possibly making more and then selling these shirts.

My question is: would this be legal? Would we have to get permission from Bo Burnham in order to use his lyrics? I would assume we would have to, but I'm not entirely sure and what this would really entail.
And since the shirts are store bought, would this be an issue?

Thanks!