Radioactive
▲Imagine Dragons Lyrics

Whoa, oh, oh
The singer starts with an exclamation expressing his strong emotion

I'm waking up to ash and dust
The singer wakes up to a world destroyed by some disaster, possibly a nuclear explosion

I wipe my brow and I sweat my rust
The singer has been working so hard in this new reality that he's rusting from the inside out

I'm breathing in the chemicals
The air is toxic and the singer has to breathe in the chemicals to survive

I'm breaking in, shaping up, then checking out on the prison bus
The singer is breaking into a new reality, getting used to it, and then leaving on the prison bus which may signify a false sense of security

This is it, the apocalypse
The singer acknowledges that this is the end times, the end of the world as we know it

I'm waking up, I feel it in my bones
The singer feels the urgency of the situation deep inside, a sense of impending doom

Enough to make my systems blow
The singer feels like his whole body is going to explode under the pressure

Welcome to the new age, to the new age
The singer is welcoming the arrival of a new era after the apocalypse

I raise my flags, don my clothes
The singer prepares himself for battle or revolution

It's a revolution, I suppose
The singer realizes that a revolution is necessary to deal with the new reality

We'll paint it red to fit right in
The blood of the revolutionaries will be spilled and they'll fit right into the new reality

All systems go, the sun hasn't died
Despite the apocalypse, everything is still working, and the sun is still shining

Deep in my bones, straight from inside
The urgency the singer feels is at the core of his being

Whoa, oh, oh, oh, oh, whoa, oh, oh, oh, I'm radioactive, radioactive
The singer feels like he's become a walking disaster, due to his radioactive surroundings