Carrie Underwood is under a lot of pressure as she is undertaking a huge task of playing 'Maria' in a live TV version of 'The Sound of Music' in December.

Julie Andrews made the role famous almost 50 years ago, back in the 1965 film, and this is where the legion of fans have their problem.

"I get hate Tweets and stuff like, 'You're not Julie Andrews!'" the 30 year-old tells Entertainment Weekly's Entertainers Of The Year issue.

Underwood continued, "I know I'm not Julie, Nobody is and I would never pretend that I was . I know my place."

While not all fans seem happy with the decision for Carrie to take the role, she does have the thumbs up from Julie, herself! "Fifty years later, it's time somebody had another crack at it," the 78-year-old told Zap2it.

"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 Carrie."

However, the upcoming version will differ slightly from the original film, and Julie understands this, Carrie's version will be slightly different.

"I know they're not doing the movie, though," Julie added. "They're doing the Broadway show - that's what they have the rights to - and I don't know whether it will resonate similarly."

Starring alongside Underwood will be True Blood's Stephen Moyer as 'Captain von Trapp' and the live television show will air on NBC on Thursday, Dec. 5 at 8 p.m.

Carrie Underwood
Carrie Underwood is receiving hate tweets for 'Maria' role