Christina Grimmie's last Facebook post a few hours before she was fatally shot showed a smiling upbeat young woman asking people to attend her concert.

"Hey guys, what's up?" she said into the camera. The 22-year-old was bubbly and urged fans to stop by the show at The Plaza in Orlando. She closed with an excited "byee!"

The video was posted around 7 p.m. and according to authorities, the concert ended around 10 p.m. Grimmie was shot as she signed autographs for fans at a merchandise table.

Grimmie, a New Jersey native, finished third during season six of NBC's "The Voice" in 2014, competing on the team of Maroon 5 star Adam Levine. She began amassing a following on YouTube as a teenager, gripping online viewers with her powerful renditions of hit songs. Her videos on YouTube have garnered millions of views.