Miller Mobley/Billboard

Idina Menzel, 42, started out in Broadway almost two decades ago, but is only now getting major recognition because of her work in the Disney film 'Frozen' and its successful song, 'Let It Go.' Menzel talks to Billboard Magazine for her cover story in the March 29 issue about currently working on her new Broadway show 'If/Then' and having to deal with balancing her "foul mouth" and being an idol to children.

"I'm a 42-year-old woman who likes to talk about sex, and I've got a foul mouth," Menzel tells Billboard Magazine. "Moms bring their little 6-year-olds to my shows in Elphaba costumes or Elsa costumes, and I have a responsibility. Sometimes that's challenging to figure out how to continue to be myself even though there's a little girl in the front row."

It might be a bit difficult to balance being a role model to 'Frozen' fans everywhere and staying true to herself, but Menzel is more worried people might lose focus on what she thinks is most important, the projects that she is a part of.

"I'm a little concerned that critics will use me as a target. Just because there might be a bunch of young girls waiting outside doesn't take away from this amazing piece of work."

Menzel made her Broadway debut in the musical 'Rent' in 1996, which became a hit. She always wanted to do Broadway, but she wanted to be able to share her love between musicals and recording pop music.

"For years, I've tried to pursue a recording career," said the 'Let It Go' singer. "I've been signed and dropped a million times. People say Broadway actors can't cross over, but it seems society is ready to accept a theater person singing a song on the radio. People have often closed doors because they didn't think we were capable of a hit song or some kind of pop-culture moment."

Starring in the Oscar-winning animated film 'Frozen' and singing the movie's knockout song 'Let It Go' has given Menzel a newfound belief in herself and her dreams of a career in the pop music world. The former 'Glee' actress won't even let the incident of John Travolta messing up her name at this year's Oscars bring her happiness down.

"That threw me for a minute, but then I just got back on track and reminded myself of where I was," said Menzel of the name mix-up at the Oscars. "He [John Travolta] was really gracious and sent this gorgeous email, and we're buddies and it's all cool. I mean, I've only benefited from it."