Miley Cyrus 'Excited' For Fans To See 'So Undercover'

'I've had an awesome time shooting this movie,' actress/singer says in video message to fans.

Considering she spent years playing a girl who led two lives on "Hannah Montana," Miley Cyrus' upcoming role as an FBI agent who goes "So Undercover" at a college sorority should be an easy transition. Miley recently took to YouTube to update fans on all the fun she had shooting the comedy/action flick. She even spilled the beans on a special actor who joined the movie's "entourage" for a cameo.

" 'Sup guys? It's Miley in my trailer hanging out on the set of 'So Undercover,' " she told fans in the video. "This is actually our last week and a half, which is crazy."

So, what sort of antics have Miley and the cast, including Kelly Osbourne, been up to on the set? "I can't believe how quick it's gone," she said. "We had a really good time. We actually just had a wrap party because the girls are leaving 'cause now it's getting into the relationship of me and my dad. So all the sorority scenes are coming to an end, so all my girls are leaving me.

"We've been working so hard," she continued. "Literally, I'm in every scene except one or two, so we've been here working really long hours. It was nice to have a night just to be able to hang out, all the crew and all the cast, to be able to hang out as friends, not in just a work environment."

That cast includes Jeremy Piven, who apparently has a secret part in the flick. "They let me and Jeremy Piven, who plays one of our characters ... can't tell you who, I'm not allowed. But Jeremy's in this movie, and so he got up on the drums and we played 'I Love Rock 'n' Roll.' "

Bottom line, although the film has been a lot of hard work, Miley thinks it's all been worth it. "I've had an awesome time shooting this movie," she said. "I'm excited for you guys to see it, really digging it. I wanted to tell you guys I love you ... peace."