In the upcoming film, 'Joyful Noise,' Dolly Parton and Queen Latifah play sparring choir members who don't seem to have a whole lot in common -- except for strong wills and a whole lot of sass.

Dolly plays G.G. Sparrow, the widow of a church choir director who disapproves of Latifah's character, Vi Rose, taking over her husband's position. Given G.G.'s spunky personality, big blond hair and perfectly manicured nails, the country music icon says playing her just came naturally.

"That character was so me that I didn't really feel like I was acting," she tells The Boot. "But I had to go deep inside, and I had a great director [Todd Graff]. If I was trying too hard to do it my way, he was wonderful to say, 'Well, you need to have a little more edge.' But he liked me doing my own thing, being my own self as much as I could."

However, it's hard to believe real-life Dolly would engage in a public food fight, as G.G. Sparrow does with Vi Rose in the exclusive clip from the movie below.

Watch a 'Joyful Noise' Movie Clip + Interviews

"Any time I've told anybody, 'I'm getting ready to do this movie called 'Joyful Noise' [with] Queen Latifah and Dolly Parton,' people are always so shocked!" says Keke Palmer, who plays Queen Latifah's daughter in the film. "They're excited to see them on screen together, because it's not a match you would've thought of. But when they see this film, they're definitely going to be loving it."

Dolly insists their pairing wasn't too far fetched. "Everybody used to say to me, 'You and Queen Latifah should do something together. You have a very similar personality, very likeable, very upfront and out there,'" she tells The Boot. "I could see that myself. I used to think it would be fun to work with her, because I like her. When we both got the chance to do this and found out that we both were looking at the script, we both said yes, we'll do it if they do."

'Joyful Noise,' which features three original songs by Dolly -- including a duet with on-screen husband Kris Kristofferson, opens in theaters on Jan. 13. Click here to find out more info on the film, including movie times in theaters near you.