Former Voice contestant Christina Grimmie was shot and killed after her concert in Orlando, Florida, on Friday, June 10, and celebs and fans alike have taken to social media to send their condolences to the singer's family.

Grimmie, 22, who rose to fame on YouTube and finished third on season 6 of The Voice in 2014, was signing autographs at the Plaza Live Theater when a man walked up and shot her. Grimmie was rushed to the hospital in critical condition, but she died several hours later. Grimmie's brother Mark tackled the man, who then shot and killed himself. Law enforcement sources told TMZ that the man had no known connection to Grimmie, and there were "no red flags associated with the shooter in terms of doing bizarre or violent things in the past."

“Her brother is a hero for saving and stopping him from not hurting anyone else,” a police spokesperson added in a statement.

The band Christina was performing with at the show, Before You Exit, tweeted a lengthy statement following her tragic death. “Christina was such a loving, caring, beautiful person with the biggest heart,” they wrote. “She was an absolutely incredible musician and an even better friend. We are so saddened by her passing and are completely heartbroken. Words fail to describe how much Christina means to all of us,” the statement continues. “She was always a constant beam of light and energy into the hearts of everyone around her. Her care-free spirit and her laughter constantly lit up every room she entered and she always had this glisten in her eyes which was evident in her faith. While we know there is no sort of feeling that can replace the joy Christina brought into our lives, we know she is glistening from up in Heaven and shining down on all of us.”

Stars like Nick Jonas, Demi Lovato and Colton Haynes have all taken to social media to pay their respects to the singer as well. Jonas posted the photo above and simply wrote, "💔 #ripchristina," while Lovato added, "#RIPChristina 😰😢 my thoughts and prayers are with her loved ones.." Haynes added, "So sad right now. My thoughts & prayers go out to Christina Grimmie's friends/family. What an incredible talent that won't be forgotten."