Boneta's character even becomes the fictional author of Journey anthem 'Don't Stop Believin'', a song which he admits he "wishes he wrote in real life".
Speaking to Digital Spy in between giggling fits, Hough and Boneta enthuse about their time filming Rock of Ages.
"I loved making Footloose, and Burlesque was… an experience," Hough said of her previous film work. "But nothing beats this, or even stacks up to this."
Boneta, who makes his big-screen debut in Ages, explains that working with Tom Cruise was a valuable learning experience.
"I learned so much from Tom. Tom is the hardest working man that I've ever met in my life – he's so talented and humble."
Rock of Ages opens on Friday (June 13) in the UK and Sunday (June 15) in the US.