Christina Grimmie
Former contestant on The Voice was shot while signing autographs right after her concertLisa Lake /Getty

Singer Adam Levine was one of the many celebrities who expressed grief over the shocking death of The Voice star Christina Grimmie at a concert in Orlando. The 37-year-old singer took to social media to post a wordy message in memory of the late singer, who was shot dead on Friday night by a "deranged fan".

He wrote on Facebook, "Behati and I are absolutely devastated and heartbroken by Christina Grimmie's tragic death. Our hearts go out to her family."

"Christina was a natural, a gifted talent that comes along so rarely. She was taken from us too soon. This is yet another senseless act of extreme violence. I am left stunned and confused how these things can conceivably continue to happen in our world," he shared extending condolences to Grimmi's family.

Following the Must Be Love singer's tragic death at the concert, Levine shared: "This just isn't fair." The late singer-songwriter was part of Levine's team in the NBC reality show, The Voice on season 6.

Joining the Sugar hitmaker, several other A-listers too expressed their condolences at the untimely death of Grimmie, who was shot while signing autographs for fans. "I'm stunned and disgusted and heartbroken that we lost that sweet little girl... Keeping @TheRealGrimmie family in my heart and mind," Blake Shelton, who shares the judging responsibility on the reality TV show tweeted.

Apart from The Voice coaches, representatives for the NBC show also shared a message on Twitter. "There are no words. We lost a beautiful soul with an amazing voice. Our hearts go out to the friends, fans and family of [Christina]," read the tweet.