DAVID GUETTA - TITANIUM

You shout it out 

But I can’t hear a word you say 

I’m talking loud not saying much 

I’m criticized but all your bullets ricochet 

You shoot me down, but I get up

I’m bulletproof nothing to lose 

Fire away, fire away 

Ricochet, you take your aim 

Fire away, fire away 

You shoot me down but I won’t fall, I am titanium 

You shoot me down but I won’t fall

I am titanium, I am titanium, I am titanium, I am titanium

Adapeted from https://www.google.com.br/search?ei=R4G4XISrDYKP0Aad4r34Bg&q=titaniuou&oq

The modal verb CAN’T, bolded in the text means