Witherspoon is starring in 'Sing'

Reese Witherspoon
Actress Reese Witherspoon arrives at the Premiere Of Universal Pictures' 'Sing' held at Microsoft Theater on December 3, 2016 in Los Angeles, California.
| Credit: Albert L. Ortega / Getty Images

While Actress Reese Witherspoon is certainly no stranger to country music, she admits that learning Taylor Swift's pop song "Shake It Off" for her new animated film Sing wasn't the easiest job in the world. In fact, now she has a newfound respect for the 27-year-old crossover star.

"Country music is much easier for me," Witherspoon said while visiting the Today show with co-star Matthew McConaughey. "Singing Taylor's song ‘Shake It Off' was really hard. I happened to run into her while I was making the movie and I was like, ‘I have a new appreciation for how hard you work.' She's like, ‘Yeah, I work really hard.'"

In the movie, McConaughey plays a koala bear who runs a singing competition, while Witherspoon lends her voice to a singing pig named Rosita.

Since McConaughey didn't have any prior singing experience, he had to spend quite a bit of time honing his skills. His big moment is when his character, Buster Moon, takes on Carly Rae Jepson's 2012 song "Call Me Maybe." Meanwhile, Witherspoon, who won an Oscar for her portrayal of June Carter in Walk the Line, had to expand her skillset to pop music in order to master hits by Taylor Swift and Katy Perry.

So how did they do? According to their families, they nailed it. McConaughey said his kids still can't decide on their favorite character, and according to Witherspoon's estimates, her kids have already seen the film 60 times! They may be a tad biased, but we're definitely sold.