Jason Aldean made a surprise visit on Saturday Night Live, he opened the show with a speech and by singing a Tom Petty song as a tribute to Vegas. He sang "Won't Back Down."
See the video here:
https://www.nbc.com/saturday-night-live/video/jason-aldean-cold-open/3598342
Then yesterday, he and his wife traveled to Vegas and visited fans that were recovering in the hospital. See the pic that Brittany Aldean posted to her Insta: