Demi Lovato and Selena Gomez Crash Prom

Best pals Selena Gomez and Demi Lovato ditched a glamorous film party to invade a high school prom in Canada on Thursday.

The two Disney stars were in Toronto celebrating the launch of her new TV movie Princess Protection Program when they decided to check out a prom at nearby Etobicoke Collegiate Institute.

Security guards allowed the 16 year olds to sneak into the event, where they mingled with stunned students, and even took to the dance floor to show off her moves.

Prom night came to an end for the teens at 11pm, however, after the party-crashers were asked to leave because they weren't students.

Gomez was still on a high after the event, writing on her Twitter.com blog: "Ppp (Princess Protection Program) peeps and I crashed a prom tonight and danced with a highschool!! amazing!! I finally had prom!"