Jason Aldean's plea after Vegas attack: 'Time to come together and stop the hate'

Aldean admitted that there is a long way to go, but that "we have to start now."

Aldean was about 30 minutes into his set Sunday night and still onstage when the shooting began.

Suspected shooter Stephen Paddock, a 64-year-old Nevada resident, opened fire on the crowd on Sunday night, killing at least 59 people and injuring hundreds. Police said he then shot and killed himself.

Aldean's post implored people to set aside their differences and "stop the hate."

"Something has changed in this country and in this world lately that is scary to see," Aldean continued. "This world is becoming the kind of place I am afraid to raise my children in. At the end of the day, we aren't Democrats or Republicans, whites or blacks, men or women. We are all humans and we are all Americans and it's time to start acting like it and stand together as one!"

He admitted that there is a long way to go, but that "we have to start now."

"My heart aches for the victims and their families of this senseless act. I am so sorry for the hurt and pain everyone is feeling right now and there are no words I can say to take that pain away. Just know you all are in my heart and my prayers as we all go through this together. Time to come together and stop the hate!" he added.

Just after the shooting, Aldean also took to Instagram to ask people to "pray for Las Vegas."

Aldean's wife, Brittany, who is expecting the couple's first child, also spoke out early Monday morning.

"We are safe," she wrote on Instagram. "Our angels were definitely watching over us tonight. No words for what happened ... Just horrific. Praying for everyone."

The festival organizers echoed that sentiment in their own official statement after the attack.

"While we will try and move forward, we will never forget this day. We will not let hate win over love," the statement read. "We will not be defeated by senseless violence. We will persevere, and honor the souls that were lost."