You can cause one song to play in the heads of every human on earth. One song, in its entirety. What song do you choose to inflict?
You know, I genuinely tried to come up with a more serious answer but ultimately I don't think the entire world needs to hear whatever song I consider the best song, or even my favorite song.
I think the entire world just needs to enjoy these 4 minutes and 17 seconds of pure delight.





