List of ways that Joe could have hurt his back: 1. Ducking out of the way from a shoe thrown at him by an angry Iraqi during press conference. 2. Pulling a train with his teeth. 3. Announcing to the team... Jump on my back... I'll carry you and the team actually jumped on his back. 4. Heavy Japenese Masseuse walking on back and forgetting to take her stilettos off. 5. Trying out for the next season of Dancing with the Stars and trying to prove something while auditioning after being rejected during his audition for American Idol and The Voice. 6. After being rejected during his audition for the Voice. He was offered an audition as a judge and he spun around in his chair too quickly.