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Courtesy: Twitter

Kelly Osbourne and Miley Cyrus are proving that girls just want to have fun!

While on set of their new movie So Undercover, Ms. Osbourne transformed herself into the spitting image of her superstar BFF.

Wearing short shorts, Miley, 18, and a wig-wearing Kelly, 26, flash a signature-Miley peace sign. Posted with the pic, Ms. Osbourne tweeted, "I'm just being Miley!"

Kelly has made it clear that she's in full support of the teen sensation despite all the negative press surrounding her recent bong incident.

Earlier this week, Ozzy's girl tweeted, "Miley and I have become really close. I'm sick of all the haters judging her...This really makes me mad. Miley is one of the most hard working respectful women I have ever worked with, I am learning a lot from her!"

Looking forward to seeing these two on the big screen!