Miley CyrusWhile filming the last season of 'Hannah Montana,' Miley Cyrus invited the families of troops to view a live taping of the show, PEOPLE reports.

What they didn't know was that Cyrus and her father, Billy Ray, planned to use the guests as extras in a concert scene for the final season, entitled 'Hannah Montana Forever.'

"My dad has always been super involved with the troops so [the producers] always try to find things that are close to our hearts and that we're really involved in," Miley said.