The November 14 stop on the Apollo X tour - featuring co-headliners The Devil Wears Prada and Motionless In White - saw Smith leap into the crowd at the city's Fox Theater. And the singer shared the first news of the injury on Twitter after the concert.

He says: "Never hurt myself at a show worse than I did tonight, but it was worth it for you Pomona! Love our fans!" He revealed the full extent of the damage a few days later in an Instagram update.

Smith says: "I had heard stories of injuries from stage diving, but you never think it will happen to you until it does. I have a broken rib, a fractured rib and broke transverse process which is one of the protruding bones near the bottom of my spine.