Miley loves a good pre-show dance party!

It appears as though the twerking superstar is passing along her bad behavior to her tween sister Noah. We're sure Miley is a great influence for any teenager!

The former Disney star shared two vids of herself and her 14-year-old sis dancing to "Smack That" and "Teach Me How To Dougie" before taking the stage in Ohio last night.

For the sisterly routine, the "Wrecking Ball" singer wore tiny black shorts and a grey crop top, while her teenage disciple wore baggy sweats, a cropped sweatshirt and showed off her visible undies. Nice one, ladies!

Along with the vid, Miley wrote, "#preshowturnup with @noahcyrus #smackthat."

This isn't the first time the sisters have shared a moment to "Smack That." Back in 2009, Noah was backstage at one of Miley's concerts and belted out a mini performance of the racy song. Now that's a great image: a nine-year-old singing about smacking her ass to a crowd of onlookers! So sweet!

At this rate -- Noah will be stripping in no time! We're sure Billy Ray and Tish Cyrus couldn't be prouder!

Click thru to see the video of Noah singing "Smack That" to a crowd of strangers!