If only every cog in the ever-churning publicity machine could be so fun. Crazy Ex-Girlfriend’s Rachel Bloom stopped by The Late Show to lift the veil on the process behind making a musical number. The secret is: You just sing whenever you want to. About anything. Now get to it, you little Lin-Manuel Mirandas! In the song, Bloom laments gaining 13 pounds since her Golden Globes win, but from the sound of her voice, it must have been 13 pounds of lungs! Haha, just kidding. Gaining 13 extra pounds of internal organs would almost certainly kill a person.