The Confident singer shared a moving message via Twitter on Tuesday, following the worst mass shooting in modern U.S. history last weekend, writing, "There are no words for how upset I've been since Orlando."
"I cry for the victims, ache for the families, and have immense admiration for the LGBTQ community and their resolve in absorbing this horror and uniting with strength and fearlessness," the 23-year-old performer continued. "Stay strong. We stand with you."
In another tweet, Lovato called for action, writing, "We hurt. We mourn. We argue. We settle. We need to stop the cycle. #Orlando #PulseShooting."
The horrific event has sparked renewed calls for stronger gun control in America, as well as the honoring of the at least 49 victims (and 53 injured) whose names have been released.
In addition to Lovato, many others have paid their respects to the Orlando victims, including Andy Cohen, who told ET that the senseless killings took away what is supposed to be a safe place for the LGBTQ community.
“You go to a gay bar and for some people it's the only safe place that they have,” Cohen said. “A gay bar is about a safe place and a place to feel free and a place where you can be a part of a community. So the idea that these people who were there to be just with people they love and be safe and have fun, were killed for being who they are, it just kills me.”