While promoting her new album, Tell Me You Love Me, Demi was singing on stage at the iHeartRadio Theatre in NYC to perform "Stone Cold" for her fans.
Reaching the end of the chorus, Demi went to sing the lyrics, "If happy is her, I'm happy for you," and her voice broke on the note climb.
Instead of getting upset, Demi brushed it off and shrugged on stage. "I don't know what to do" she told the crowd, as they clapped and cheered for her.
After it happened, she received a helluva lot of support and encouragement from her fans.
"Even when I lose my voice on stage my fans know how to keep me from being down.. thank you my Lovatics I love you," she wrote on Twitter.
WHAT a great fandom.