Jason Aldean his the stage for the firs time since the Vegas shooting on October 1, 2017. The singer was onstage at the Route 91 Harvest festival when a shooter, Stephen Paddock, shot multiple rounds into the crowd of concert goers, eventually killing 58 people. Aldean set down in Tulsa, Oklahoma on Thursday, but canceled the previous shows out of respect to the victims and to give loved ones time to mourn. On Sunday, the rock musician visited victims in a Las Vegas hospital, and he performed Tom Petty's 'I Won't Back Down' on SNL in tribute to the victims.