Selena Gomez breaks down on stage, talks Christina Grimmie's death

Selena Gomez broke down in tears during an emotional tribute to her late friend, Christina Grimmie, Saturday night.

Grimmie, a YouTube star and season six finalist on "The Voice," was shot Friday night during a meet and greet following her performance with pop-rock band Before You Exit in Orlando. She was 22-years-old.

"When she was 14, we met her, and my parents and I signed her," Gomez said after her performance of  "Nobody" during her Miami concert at the American Airlines Arena. "One thing about Christina and her family is that she holds her faith so closely to her. And I think it’s not about a religion, and it’s not about… good deeds. It’s just that she had faith, and I don't really understand how this really happened, but I would like to dedicate this next song to her."

WATCH: Everything We Know About Christina Grimmie's Tragic Death 

Gomez walked over to her piano and sang a rendition of Hillsong's "Transfiguration," to which the crowd shined their phone lights up to the sky.

In lieu of the tragedy, Gomez also cancelled her scheduled meet-and-greets with fans following her Miami show, according to E!.

Earlier in the day, the "Same Old Love" singer shared a black-and-white photo of her late friend on Twitter. "My heart is absolutely broken," she captioned it. "I miss you Christina."

Charlie Puth also took time to remember Grimmie during his concert Saturday night in New York. The singer dedicated his hit song "See You Again" to the late singer.

"I was reading the news last night and heard that my good friend Christina Grimmie was killed, and I want to dedicate this song to her tonight," Puth said to concertgoers. "I've been upset about this all day, mainly because I just never got to say what I wanted to say to her, and I feel like this song perfectly captures that."

Puth also addressed Grimmie's tragic death on Twitter.

NEWS: Selena Gomez's Stepfather Created a GoFundMe Account For Christina Grimmie 

Gomez's stepfather, Brian Teefey, first discovered the "Voice" contestant when she was in high school and later became her manager. On Saturday, he created a GoFundMe account in her honor.

"Words cannot begin to describe the pain I am feeling," Teefey's message read. "I learned this business through the eyes of a father and Christina was like a second daughter to me. All I wanted to do was assist her in achieving her musical dreams while protecting her from the pitfalls associated with the business. I never could have imagined this horrific event being one of the pitfalls needing to be avoided."

Teefey also explained that the GoFundMe page was setup in order to assist Grimmie's family in their time of need.

NEWS: Christina Grimmie's Brother Releases Heartbreaking Statement Following Sister's Death 

"As family Mother, Father, and Brother made the ultimate family sacrifice to support Christina on her musical journey. They did nothing but love her and support her as family the best they knew how, the only worry I want them to have at this point is that of recovery," he concluded. "Grimms I love you, and miss you beyond comprehension."