YouTube star and former The Voice contestant Christina Grimmie has been shot dead in front of terrified fans as she signed autographs after a concert.
The 22-year-old was blasted by a gunman minutes after coming off stage at The Plaza Live in Orlando, Florida, in the early hours of Saturday, UK time.
Her brother tackled the gunman, who then shot himself dead, local police said.
Tributes poured in for the young singer from New Jersey, who finished third in the sixth series of the US version of the hit reality show in 2014.
Her Youtube videos, including cover versions of songs such as Adele's Hello and Justin Bieber's What Do You Mean, have since gained millions of views.
Orlando Police Department said that Christina had performed with the band Before You Exit and stayed behind with them to sign autographs after the show which finished at 10pm local time (3am BST).
Fellow contestants on The Voice, as well as her mentor on the show - Adam Levine, have led online tributes to the young starlet.
Adam wrote on Instagram: "I'm sad, shocked and confused. We love you so much Grimmie. We are all praying hard that you can pull through this...this just isn't fair."