"Feels surreal being back in Vegas today", she wrote. "His visit helped heal hearts and cheer those who were wounded in this tragedy", posted the University Medical Center on their Facebook page.
The country singer and his wife Brittany visited survivors of the shooting at the University Medical Center of Southern Nevada.
"You have helped us try to begin to start the healing process by seeing the strength each one of you have".
Aldean was performing at an outdoor concert in Las Vegas last Sunday night when a gunman sprayed bullets into the crowd from a high-rise hotel, killing 58 people and injuring almost 500. "We will never forget", said the mother-to-be, who is expecting a baby boy in December. Jason spent time with our patients who were critically injured during the Las Vegas shooting.
Aldean flew to Vegas after performing a surprise cold open on Saturday Night Live the previous night, where he paid tribute to the victims and to late rock star Tom Petty, who died at age 66 less than 24 hours after the shooting.
The local CBS outlet posted pics of Aldean meeting with some shooting victims in the hospital. So many people are hurting: they're out children, parents, brothers, sisters, friends - they're all part of our family.
The mass shooting - the deadliest in modern United States history - was carried out by gunman Stephen Paddock who fired on revellers at a country concert Aldean was performing at from his room at the Mandalay Bay hotel.
Aldean also made a call for the country to come together and show collective resolve: "When America is at its best, our bond and our spirit, it's unbreakable".
Aldean then went on to perform Tom Petty's song "I Won't Back Down".