Carrie Underwood injured herself during rehearsals just days before for the live TV production of The Sound of Music.
Underwood, who plays Maria von Trapp in the broadcast, wrote on Twitter Tuesday, "So yesterday I hit myself in the head with my own guitar & later fell on my face playing leap frog! What do today's rehearsals have for us?"
The 30-year-old also wrote that she "no longer leap frog[s] in the show."
Underwood recently defended her role as Maria, who was famously played by Julie Andrews in the 1965 film. However, Mary Martin originated the role when The Sound of Music first opened on Broadway at the Lunt-Fontanne Theatre in November 1959. Martin, who passed away in November 1990 of colorectal cancer, was the mother of Dallas star Larry Hagman, who died last November of complications from acute myeloid leukemia.
The Oklahoma native said she had received hate tweets telling her, "You're not Julie Andrews." Underwood told Entertainment Weekly, "I know I'm not Julie. Nobody is and I would never pretend that I was … I know my place."
Andrews has given Underwood her support, and said she is a fan of the six-time Grammy winner.
"Fifty years later, it's time somebody had another crack at it," Andrews said. "I had the best time of my life doing it, and it did wonderful things for me. I think it's great that it's being done again, but doing it live must be so daunting for Carrie."
The live three-hour special also stars True Blood's Stephen Moyer as Captain Georg von Trapp and Private Practice star and five-time Tony Award winner Audra McDonald as Mother Abbess. Oscar producers Neil Meron and Craig Zadan serve as executive producers, with Rob Ashford and Beth McCarthy-Miller directing. David Chase serves as musical director.
The Sound of Music airs December 5 at 7 pm on NBC.