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MUST SEE: Jason Aldean's Heartfelt Message & Performance On SNL

Saturday Night Live took a serious turn this past weekend when country singer Jason Aldean appeared on the show. Jason started his performance with a heartfelt message about the Monday's tragedy in Las Vegas during the final song of his concert. In addition, his song choice, "I Won't Back Down," paid tribute to Tom Petty, who passed away the same day as the Las Vegas shooting.