The song echoes the teenage underdog themes that run through Imagine Dragons' 2017 single "Thunder
." Kids were laughing in my classes
While I was scheming for the masses
Who do you think you are?
Dreaming 'bout being a big star
"I was able to go to a place that was very vulnerable for me," Dan Reynolds told Radio.com
regarding "Zero." "I wasn't in any sub-group. I was like not a popular kid, I wasn't a band kid, I wasn't good at sports. I just kind of was someone who went home by myself and wrote music every day and then started a band."