Jason Aldean had an unforgettable performance at the Route 91 Harvest Country Music Festival when an unknown perpetrator opened fire near the venue in the middle of his performance. According to Entertainment Tonight, the singer was in his final act when gunshots were heard from the concert location.

Two killed, dozens injured in Las Vegas shooting

An affiliate confirmed to the publication that Jason Aldean and his team were not hurt in the incident that killed two civilians and has left several others injured. In videos released on social media, the country singer initially continued with his performance even after multiple gunshots were heard before the show was completely halted as the attacker continued to fire.

A concertgoer, named Kodiak Yazzi, said he heard what sounded like fireworks in the middle of Jason Aldean's performance. The set then stopped the music before they eventually carried on with the concert show. The performers, however, had to end the program when another set of gunfire was heard in the open field.

The source recounted that the gunfire went on for about five minutes before the authorities confirmed that a suspect is "down" and advised the public to vacate the vicinity where the shooting took place.

Initial reports stated that 26 concertgoers were rushed to the University Medical Center, with some of them sustained gunshot wounds from the Las Vegas attack on Sunday.

A spokesperson cited 14 individuals are currently in critical condition following the incident.

Singer releases statement after Las Vegas shooting

Meanwhile, it was revealed that Jason Aldean and his band were the last act to perform at the Route 91 Harvest Country Music Festival. In an Instagram post, the country singer expressed his thoughts on the appalling shooting incident.

"Tonight has been beyond horrific. I still don't know what to say but wanted to let everyone know that me and my crew are safe," he wrote. "My Thoughts and prayers go out to everyone involved tonight. It hurts my heart that this would happen to anyone who was just coming out to enjoy what should have been a fun night."

Jason Aldean is best known for his songs "She's Country," "Big Green Tractor," "Dirt Road Anthem" and many more.

He has also collaborated with Kelly Clarkson for his single "Don't You Wanna Stay" released in 2010.

His fellow performer at the Las Vegas concert also reassured the fans that he was not injured in the attack.