Miley Cyrus might be doing Justin Gaston in her free time.

But her professional life is spent rocking out to songs such a “Let’s Do This,” the single whose music video premiered last night on the Disney Channel.

The song - with lyrics that include “I’ll turn it on, I’ll turn it up, I’ll show you all what I’m made of”  - will be featured in the The Hannah Montana Movie, scheduled for an April 2009 release.

Watch and enjoy:

Miley Cyrus - Let's Do This