VIDEO : Christina Grimmie: Adam Levine, Blake Shelton, and more react

After reports surfaced of the death of 22 year old, Christina Grimmie, celebrities Celebrities immediately took to Twitter and instagram to express their sorrow. "The Voice" contestant was shot and killed Friday during a fan meet and greet after her concer. She was a season 6 finalist of "The Voice" on Adam Levine's team. Levine posted a photo with her and wrote: "I'm sad, shocked and confused." Fellow "The Voice" Judge, Blake shelton tweeted: "I'm stunned and disgusted and heartbroken that we lost that sweet little girl." Other celebrities such as Tori Kelley and Demi Lovato also tweeted messages of love and support.