Julianne Hough & Diego Boneta: Be In 'Rock of Ages'!!!

Julianne Hough gives Rock of Ages costar pal Diego Boneta a hug goodbye as they finish up their day poolside in Miami, Fla., on Sunday (July 10).

Although you might see sparks flying off-screen, Diego, 21, insists the two are just friends.

“I am very lucky to have her as my female lead and as my co-star. We’ve become really good friends. She’s a great girl, she’s so talented. She’s an amazing dancer, an amazing singer and an amazing person overall. I’m so lucky to be working with her but you know, she has a boyfriend and I totally respect that. We are good friends,” he told Latina mag.

Psst, want to be in Rock of Ages? If you live in Miami and are free NEXT Monday (July 18), find out how you can be in the movie!