'Frozen' Director Jennifer Lee Says She's Sorry for 'Let It Go'

— -- Jennifer Lee is sorry for the never-ending car rides and restless nights, when only "Let it Go" will help.

Lee, who directed “Frozen,” the most successful animated film of all-time -- grossing more than $1.2 billion -- issued a playful "apology" to parents weary of hearing the movie’s songs again, and again, and again. Lee told the Hollywood Reporter that since the film’s release in November 2013, she’s endured changing reactions about the movie’s music.

"A year ago, I'd meet people who, when they found out who I was, they'd say, 'Oh, we love the songs! We sing them all the time.' Now they're like, 'Yep, we're still listening to those songs,'" laughed Lee. "I've gone from, 'Thank you,' to, 'Sorry!'" she said in the interview.

“Let it Go” won the Academy Award for best original song, making songwriter Robert Lopez -- who co-wrote the song with wife, Kristen Anderson-Lopez -- only the 12th person to win an Emmy, Grammy, Oscar and Tony. The song was performed by Idina Menzel, who voiced Elsa in the movie. Other standout songs from the film include “Do You Want to Build a Snowman?” and “For the First Time in Forever.”

“Frozen” was released by Disney, the parent company of ABC News.