If you were wondering whether Tom Cruise can deliver in the singing department, his "Rock of Ages" co-star has the answer, and it appears to be a resounding "Yes." The film's leading lady, Julianne Hough, raved about Cruise to MTV News just this week.

"Oh, he's fantastic," Hough said. "If I remember correctly, I hear his ... grandparents or something were opera singers, so he has this tone and this pitch that is incredible."

The actress, who hopped on the phone with us to dish about the March 6 DVD release of "Footloose," also gushed about the A-lister's work ethic. "Anybody who knows Tom knows that he literally is the most hardworking and intense and committed actor out there," she added. "He, literally, would do lessons every day for hours trying to perfect it and perfect it and he really did it. He was fantastic."

And Hough should know. As Sherrie Christian, she shares the screen with Cruise's fictional rock-star character, Stacee Jaxx.

"There's a lot of songs that I'm singing, and I know a lot of its being cut out because of time and everything," she explained. "I'm scared to say what my favorite one is because it might not even be in the movie now [laughs], but I loved singing [the Scorpions song] 'Rock You Like a Hurricane' with Tom. That was really unbelievable. I sing a lot with Mary J. Blige and, I mean, anything I sing with her, I'm like dying. She's incredible. A lot of songs are really fun."

"Rock of Ages" — based on the hit Broadway musical of the same name — is directed by Adam Shankman and follows Hough's Sherrie Christian, who falls in love while trying to navigate Los Angeles in the 1980s.

"It's an incredible film to be a part of," she said. "I think the musical was so fun, people had such a blast going and seeing the show, that it was kind of an obvious decision that they should make it into a film. And, I mean, these songs are so iconic. ... It's very cool to be a part of and the cast is incredible and my character is fun. I got to show a little bit more comedy in this one, which is really fun."

Alec Baldwin, Malin Akerman, Russell Brand and Catherina Zeta-Jones also star in the movie, set to hit theaters in June.

Do you think Tom Cruise can really sing? Tell us in the comments!

Check out everything we've got on "Rock of Ages."

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