Livin' on a Prayer

Livin' on a Prayer almost never made the cut on Slippery When Wet.

Jon Bon Jovi thought the chorus was too simple to work - until Richie Sambora and a talk box changed his mind. What followed was a Billboard number one and a key change fans still get chills from.

Which hits you harder: the verses about Tommy and Gina, or that final modulation?