Demi Lovato [1] confirmed that she's every bit the boss b*tch we think she is while performing at her iHeartRadio release party for her new album, Tell Me You Love Me. The 25-year-old was in the middle of belting out her hit "Stone Cold" [2] when her voice cracked as she tried to hit a high note. "F**k," she said. "I don't know what to do." She continued singing and later told the host, Elvis Duran, "That's what we call not lip-syncing."

At the very least, you have to respect her for keeping it real. Lovato went on to Twitter [3] after the party to thank her fans for holding her down, writing, "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." Watch the video above to see the admirable way she handled the awkward moment!